First 70L/16gal Caribbean tank

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PHOTO DUMP THREAD

About myself

Hello everyone!

Allow me to present myself. My name is Jules and I live in Belgium. I'm 27 and working full time in customer support. I would describe myself as someone who is passionate and creative. I always had interest in many things ranging from sports to taking care of exotic plants, every time I find something interesting I have this vibrant urge to go all in about it and discover and learn everything on the subject. But this passionate burst has some downfalls.

My interest can burn sometimes quick and I'm sure some can related it is then hard to enjoy again the things that were so interesting a few months ago. This is something I have been trying to manage as I grow "older". I think that it is a matter of stinking with things getting past the excitement and allowing the dust to settle to finally discover unknown areas of a hobby or passion.

So here is my attempt to share my journey and try to hold myself accountable to something that I'm deeply interested in for a while.

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IMG_2527 - Grande.jpeg

*Many interest


A little back story

In my childhood my father had already this hook for reef keeping. My father came from a biology/chemistry background and he worked in water purification field. Funny enough i knew what reverse osmosis was before his first reef tank came to the house. Before choosing a salt water tank he thought about Discus which are also sensitive to water quality and fairly hard fishes to master.

But for my father having the opportunity to dive into the complexity and ever evolving world of reef keeping got the best of him. He started to read books (that was main stream at the time), going on website forums, probably even on this one if it existed at the time. He was getting crazy about it you could see in his eyes that the things he was learning were getting him hooked. The more he knew about it the more he wanted to learn. I think this part of my father is what i prefer, as mentioned earlier it was not without downside but i always admire that ability to go further than anyone else abd being able to make sense of really abstract stuff at the time.

One day the aquarium was there in the living room next to the couch. The unusual blue light that was coming from it, the smell of the salt, the noise of the pumps in the cabinet. This was a machine and he was proud of it. I could describe the full story of this but I could dedicate another full thread about it. I Just remember that my father got the bug we went on having multiple tanks bigger and greater every time.

This thing that my father had going on and still has even if it is not running anymore has stick with me hidden and i always told myself secretly that i would also be able to take care of a little drop of ocean!

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*Photos i could find of some past aquariums from my father


The idea

Around a year ago I started researching on the subject of reef tank. I started to ask myself questions on what would be possible or not. The things i would like to have and how i would enjoy the most my aquarium. Coming from an exotic plant background i always found that planted reef tanks looked amazing and of course i stumble into Tigahboy's tank but also someone that inspired me a lot from Youtube is the channel of Nicolas Marion "Aqua Splendor".

The picture started to take shape in my head but sadly i was not able to make the step and start purchasing materials to start building something. I kept it once again in the back of my mind knowing that it wouldn't be long before i would make a come back. I was know aware of some things interested enough to keep looking.

Fast forward to this January 2025, where I finally found the mental space and budget to kick things of seriously. I had this little space in my office area ready to welcome the tank. I took a shot and said to my girlfriend during a diner together: "I'm going to start a reef tank!". She always is supportive but she knows me and i can be jumping from one thing to another so she is always careful and managing her excitement until it becomes real but she was happy to see me getting interested in something as always.

So the idea is to mix my already existing love for plants and my new raising interest for reefing together. the best way to do so is going big on a planted reef tank with macro-algae, mangrove, and everything Caribbean style. I want the mangroves to sit proudly in the tank with roots shooting around the stones with fish swimming underneath. Macro-algae of different colors and maybe some corals or feather worms but more on that later.

I hope you got the idea!

What's next?


In this thread i think i would like to develop the process and evolution of ideas I have. I'll try m best to document the process but also giving more backstory and what lead me to take those decisions. I would like also to build this thread to hold myself accountable towards this new hobby.

Anyway thanks fro reading, hope you'll enjoy the process as much as i will!

Happy reefing!


Jules
 
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Congratulations on the new adventure!
 
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Update #1

Hello everyone, it’s been some time since I started this thread. Let me update you on what happened so far!

After gathering my thoughts and starting knowledge I went on to my local fish shop and bought a 70L/16gal tank!


IMG_3410.jpeg

*To humble beginning

I also bought the hardware such as mini sump/filter, heater, rocks and a LED lamp. I will detail everything in a later post.

I also contacted my father about the water, mostly about reverse osmosis water. I mentioned earlier my father has been in the hobby for a while but in addition he has also been working as a chemist for a company that is involved in creating “Water purification machines” for a pharmaceutical use. In the past I remember those almost science fiction looking machine making the noise of a small factory. The water that is coming out of these things is like H2O only nothing else it is the multiple final boss of purifying water.

I won’t go too much in details again as I can make a post specifically going more in details if that interest you. For the curious I could put it simply by saying that every molecules that are not label H2O is strip apart and thrown away! As opposed to ROI water that focus only on replacing Calcium and Magnesium insoluble parts by soluble molecules of Sodium NACL.


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*My father in action + the monster (Elix10)!

My father also brought me a great deal of equipment from his previous reefs, some dead rocks from the Red Sea. I will mix that to the ones I have and the love rocks from my LFS.

While the water was filling the tank i took the time to wash the Paleosand and the rocks. I also set up the pump, heater and light.


IMG_3479.jpeg

*The aquarium is in my office space

When water was at temperature (25/26C) I added the enriched salt mixed by the pump with no filter media yet. It’s been like this for 4 days now.

I played around with the settings of the lamp. It is an Aquaknight V2. Apparently a really cost effective lamp for nano-reef based on the reviews on the internet. I think it was a good starting point but I’m open for changes and adjustments.

Conclusion

So last weekend it became real, the water, the hardware, washing the sand and rocks. I’m getting excited, checking books and online for the do’s and dont of the hobby.

This Friday I will go buy live rocks and focus on setting up the decor and starting to test water parameters.

But this will be for another time!

Hope you enjoyed reading it as much as I enjoyed setting and writing this up!

See you soon!

Jules
 
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Update #2

Hello everyone, coming again after my last update. it is only a few days after the tank was filled. A lot has happened since then but mostly in my head. I've been reading, watching, geeking but mostly obsessing not in healthy way about how I should start the tank.

I think everyone went through this phase, where every information read is making you rethink the entire process. I see a lot of information and everyone out there has found a way to make it work. It makes you wonder what to do, which road to take because in every piece of content you can find similarities with your current situation.

It has given me this feeling of urgency and I was a bit scared that i would take the wrong steps and make more mistakes than i should have. But I took some fresh air and let my aquarium be without me creating millions of scenarios in my head about what is happening or could happen.

I thought I share my state of mind prior to this update, now place to what happened!


Current situation

Friday 07 March, I added 4,5Kg of fresh (not seeded) live rocks and also 3Kg mix of dry live rocks from my father previous tanks and dry rocks. I created a nice little scape in "U" shape on the bottom with the goal in my mind that most of the time the tank will be looked at from the front and the right. Down the road 2 magroves tree will be added. I mixed the different rocks to get a proper colonisation of the beneficial bacteria.

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* Tank with scape in the afternoon

Did some cable management to make it look nice from above as I dont think i will be putting a black backing on the tank. My goal being to not go crazy with blues but more pushing lights towards the white and fully embracing the sunlight that comes for a few hours in the room.

I have shades curtains to avoid too much direct sunlight, the temperature of the aquarium is not rising at the moment but we are in winter and it is neither cold or hot. In the summer months i might have to adress this situation but this is something I keep in mind. Tank is also only 16g and I have spaces elsewhere in case, even if I think there is the "perfect looking" space.

I have a glass lid on top and it keeps the evaporation to a minimum I have for now not replenish the water. I even took of some because of the live rocks.

In terms of testing, I have the basic test my father advise me to get:

- PH Salifert

- Alkalinty Hanna dKh
- Nitrites Salifert
- Nitrates Salifert
- Phosphate Salifert


I have not taken the Ammonia test kit as my LFS vendor said they were inacurate and that the best way was to check Nitrites anyway and to not worry to much about amonia for now. I'm still unsure and open about that. I understand that Ammonia is going down as my nitrites and nitrates are showing up and that for most part it is only a mean to an end.

I mean in a starting tank you'll check Ammonia level mostly to check if it is going down because you are doing your cycle and your beneficial bacterias are doing their jobs. So still to be checked. I'm not planning on adding fishes any time soon.

I have tried my tests and they those readings:

- Temp : 25C
- Salinity : 1.025
- PH : 8.0 (not so sure colors was difficult)

- Alkalinty : 7.5dKh
- Nitrites : 0.25ppm
- Nitrates : 0.40ppm
- Phosphate : 0.6ppm


I think it is not too bad for the more stable parameters like Salinity, PH and Alkalinity. For the rest i added the live rocks Friday so there is indeed life in the the tank which is a good sign.

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*Small coral in the live rock

I think now is the moment when I wait. I need to let nature take its course with what I created in this little tank. It will be the most difficult part for sure. I'm afraid that there will not be enough bacteria so in case i bought the "Seachem Bottled Bacteria Stabilize". I might use it or not.

The plan is starting from Monday to test and journal the results for a month. Doing Nitrites everyday, Nitrates every other day and the rest 2 times a week.

I also will start ghost feeding if after some times i dont see development in the tank to force the nitrifying bacteria to get to work.

I think it should be fine for a month and that I should trust the process.


Conclusion

I'm not of to a bad start but i want to make it perfect and that is not how nature is working. I will take that time to gather more inspirations and also keep learning on the forum (with a grain of salt). Make a wishlist of livestock, detailing the water filtration process I have running, and many more!

See you soon


Jules
 
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I'm new at this too Jules. Looking good so far.
From what I've read, natural sunlight light isn't the best for reef tanks as it helps algae grow, but I'm not sure if that works for macro algae too.

I read your thread and I need to comment to follow along!

You are right it is like that for most aquarium indeed.

I will for now assume that the Belgian sun is not powerful enough to grow algae and that my perfect spot is perfect!

But if needed I have a spot already where no direct sunlight is hitting!

We’ll see! Thanks for the kind words!
 
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Update #3

Hello everyone!

Back at it a week later, posting some news about what happened this week. I'm still in cycling process (I think) and I have been reading online too much about the subject. But after some self reflections I thought that I needed some advices but not that much. I'm trying to cruise and to not worry about all the details.

Mostly the tank is doing good and I have now some good water parameters that are constistent. They are not moving in the wrong direction for the most part. I have still some high nitrates and a decreasing Alkalinity but the nitrites are still near the real 0.

Screenshot 2025-03-16 at 09.18.59.png


*A week worth of tests


I have been dosing Seachem "Stability" nitrifying bacterias product daily in my Nano and because of that I think my nitrates are creeping on the upper range as I keep adding more and more bacterias. I have done a 10% water change but didn't time it correctly. I should have cleaned clean my glasses, dusted the sand and rocks and then water changed. So for now my nitrates are still high. I'll carry on testing this week and next week-end will do 20% water change after being more thoughtful with precleaning.

In terms of Alkalinity, I think that my tank is decreasing in PH and therefore my Alkalinity act as a buffer and then goes on to drop slowly. I would like to be more around 7,5 dKh to have a better cushion in case of problems. Maintain this level would prevent any surprise long term in my opinion. My PH is on the lower because i don't have a lot of water turbulence on the surface. Water agitation seems the easiest variable to change to increase PH. Something to think about but as long as I stay around 8,10 / 8,00 on the Salifert it is ok.

I aslo took measures on the lights because i was putting too much intensity on it and it was promoting algae growth even more. My LED is the "Aquaknight V2". I was using a 12 hour cycle with :

- Channel A (White) 80
- Channel B (Blue) 80
- Channel C (Red/Purple) 35

I divided all of them by 2. The numbers are from 0 to 100 and it is related to the intensity. There is some videos about it on Youtube.

For the rest it is looking good in the numbers but also visually in the tank. I have a lot of small tube worms and corals that came with the live stock are growing and spawning new shoots. I saw really wmall inverts going around most of them apparently non problematic but some Aiptasias travelled with me from the LFS. They are cool looking but apparently better getting rid of it early!


IMG_3526 Medium.jpeg

*Algae is growing

This is not to worry me because Saturday I went to the LFS and bought my first members of the CUC! 3 snails to help me keep the algae under control until I can provide more stable nitrates and phosphates in the tank. I acclimated them and they got to work directly making an impact on the sand and some of the glass. They are relentless!

- Trochus Histrio snail 1*
- Astrea Spiny shell snail 2*


*CUC in their new home


For the moment I'm thinking that it is enough of these because I'm afraid that if they go bigger it will become a problem to maintain. I also wanted to add some other inverts like a hermitcrab maybe and a shrimp but I'm not decided yet. Patience is key!

Conclusion

The week has passed really fast on I'm only 2 weeks in but so much has changed already it is impressive. I feel a bit more confident to let things settle. I really enjoy watching the living organisms and can't wait to place fish!

See you soon!

Jules
 

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Looking good. Don't worry too much about chemistry initially. Any lower values are going to be easily corrected by a simple water change.
Great job tracking the chemistry!
Definitely intervene with regard to the Aiptasia.
 
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Update #4

Hello everyone!

Been a month since I posted last here. Time has passed really quickly I'm not going to lie. After posting on 16/03 I took a step back and just waited for things to happen. I had my clean up crew on the starting blocks. Algae was forming but it seemed under control. I removed a lot of it by hand without vaccuming too much sand.


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*Algae formation (23/03)

During that time I lost one hermit crab, bought a new one that ate one of my snails. I also really wanted some Feather duster which i find really beautiful, so I ordered from the internet with other hardware supplies that I didn't own yet. It can go to something as silly as an air valve or razor blade but all in good times. I try to make a list and consider if I really need it or if it is just because I saw it on a video.

Regarding chemistry everything was looking kinda good and I also realised that I was reading all my SALIFERT tests from the side. It was causing me some struggle to see my NO2, NO3 & PO4. They were always high it seemed. I then chekced again fully around the start of april also went to my LFS to compare and the result were pretty similar.

Screenshot 2025-04-20 at 21.06.34.png

*Chemistry of my water
Around the 07/04/2025 I was hoping that if I had done everything correctly that my levels would be good enough to introduce fish safely and without having the tank parameters going too much out of hands. So during that week-end on a beautiful Saturday I went to my LFS to see what they had available that day. They get shipment of new fishes on Thursday and Friday, I knew I had a chance to score a nice loot if I was there early!
The goal always has been 2 clownfish! I was hesitant on classic Ocellaris or designer ones. Lucky for me they had this stunnig juvenile A. ocellaris Black Snowflake pair. They are really curious and swimming all over the tank already checking on me when i'm around the tank. I knew clownfish were easy going but never imagined they would be that interactive.

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*Already settled in my tank


I was also looking for a sand sifter and they had the classic of the classic Valenciennea strigata. They are the yellow head goby really useful to sift your sand for aything left from feeding, algae and whatever is down there in the sand. It was a little bit shy at the beginning but now it is doing an amazing job and munching everything all around the tank. With this guy my CUC is complete!
IMG_6267.jpg

*Valenciennea strigata in action
Last and final addition was another fish that is supposedly good to eat algae and really beautiful. The Koumansetta rainfordi. This one arrived from The Netherlands by shipping, I live in Belgium and for 3,50€ they ship and deliver the same which is really nice! The fish arrived safely ad i was amazed! This little guy has also settled in and made his marks. He is using the caves that the other goby has made and they sleep in there when the lights are off.

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*Koumansetta rainfordi full of colors

This is my final fish composition at the moment I don't think another fish would be ok in terms of space it is only 70L (16gal). Maybe a shrimp? I will see!

Conclusion


Everything is going good and the fishes should keep getting better and eat more as they are less scared. It will be all about checking on them for the next months. As this will go one I'll make my mind about corals and where I really want to go in the future. This is for another update!


See you soon!

Jules
 

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