beginner aquarium

  1. GrizzReacts

    Am I doing this right??

    Ok so I just got this Top Fin Premium 5 gallon glass aquarium. Didn’t add anything (equipment) to it kept everything as is. I started cycling today added Dr.Tims one and only and a pinch of fish food. Is there anything else I need to do? Tank is still cloudy from adding water in it. But just...
  2. GrizzReacts

    Stocking 120 Gallon

    Need some help I have a 120 Gallon and need to know if what I want to stock it with is good and what else I can add. So far I want to add Blue Hippo Tang 2 Heniochus Butterfly Dwarf Angel Fish One Spot foxface Snowflake Eel Any other beauties I can add to this?
  3. PhaseOneReefer

    Hello Beginner Reef Tank Hobbyist

    Hey everyone, just starting out my reef tank journey. My girlfriend and I decided to start our own 75 galloon saltwater aquarium. Currently planning out some logistics, budget, space, etc. so still very early in the journey but excited to be here and honestly can’t wait to start. I’ve been...
  4. S

    Sea Fans Parasites Help

    I am a researcher, currently exploring coral aquaculture. I have Echinogorgia, Menella, Anella & Bebryce species of sea fans. Lately, I have noticed some red and white striped worms on my corals. Today, I took one of the specimens and dipped it in an iodine bath to remove worms. It turns out...
  5. K

    Hi! I'm starting my first saltwater tank, wanting to do only invertebrates but they keep exploding...

    so ive had my 10 gallon tank running for 6 months i have the salt aquarium sand salinity solid 1.025 temp 75 ammonia was 0 before the crabs died. sponge filter Hob filter (with ceramic media rings and activated carbon) and air stone everything else seemed good with my tetra strips which I know...
  6. simplyaquariums

    Low alkalinity, but pH, Ca, and Mg in range? Please help!

    Hi all, I have 2 mixed reef systems, which have been running since November 2025 and March 2025 respectively. Up to this point, I have been using RODI and saltwater purchased from my LFS, which sources natural sea water as live in a coastal city in Florida. I purchased both RODI and saltwater...
  7. simplyaquariums

    Hello Greetings from Florida! From a Beginner with a Biocube and Nano Tank

    Hi everyone, I have been in the hobby since November of 2024 when I inherited an established Biocube 29 that surprisingly came with a sump! The sump was daunting at first, but I have come to enjoy the space and customizable compartments. I have managed to keep all of the previous inhabitants...
  8. igorz

    Nano Build Igor's Waterbox Cube 25 Peninsula

    Hi! I'm Igor, an absolute beginner, and this is my tank: Tank: Waterbox Cube 25 Peninsula Started: March 30, 2025 (cycled with Modern Reef Nitri-Bac and AmmoMix) Display: Sand: 9 kg/20 lbs Caribsea Arag-Alive! Fiji Pink + 1 kg/2,2 lbs Caribsea Aragonite Special Grade Rock: 5 kg/11 lbs...
  9. trellemania

    Build Thread My 55 Gallon Mixed Reef (First Saltwater Aquarium)

    My most updated shot of the tank: Updated - April 5th, 2026 Origin story! Hello! My name is Andres and this will be a progress journal of my first ever saltwater aquarium! I am brand new to the hobby when an opportunity arose from a colleague to inherit their saltwater tank as they had to...
  10. A

    Is an RODI system needed???

    So I live in Sweden and here, we do have really clean water that we drink. But I am really confused on if I should get a RODI system as we have really clean water and i've heard of some people here keeping corals without using one. I am new to the saltie hobby and just want to know if it's...
  11. HossAquatics

    10-15g AIO Recommendations

    Hey everybody, I’ve been keeping freshwater all of my life, always wanting to have a saltwater tank and now I’m finally able to. I want to stay on a budget but still buy something that is good quality. I’d say my limit is around $300 since I want to get something nice but also keep the price...
  12. ReefRookie22

    Yasha/shrimp MIA.

    Just wondering what I should do about my yasha and pistol shrimp. They went in 2 weeks ago and were very active for a day or so. Since then they have gone into hiding. I've not seen the pistol shrimp for about a week and can't hear him snapping. The goby pops his head out every 3 days but only...
  13. A

    Tangs super aggressive to yellow fish!

    Hi all, I just bought a Bicolour along with a Leopard wrasse and Canary/banana wrasse Tangs absolutely went at the bicolour to the point where I had to remove him, they were all QT just fine I had to take the Bicolour out as it was getting ganged up on really badly The Canary wrasse is...
  14. Woobie

    Hello New hobby

    We had freshwater tanks for many years and now have started with saltwater. I just got our tank set up a couple days ago and still playing with rock placement. So much to learn!
  15. D

    Hello My username is DepthofReef and my name is Alex, I have a 15g Nuvo Fusion and a 20g long.

    I started into the reef keeping hobby during Covid-19 and I actually started in Freshwater but I knew about corals and saltwater few days after I setup my 20g long tank. I added salt to the mix and started from there, I like challenges, so I chose two clownfish, dottyback, and some snails. After...
  16. HomelyReef

    Build Thread Cade 900 S2 "Homely Reef" - First Marine Aquarium Build

    I purchased this Cade 900 in Brisbane, Australia as a second hand unit. It came with a netting lid. Equipment list (second hand): Prices are in AUD Nyos Quantum 160 skimmer $350 Ecotech Radion XR15 gen5 PRO + mount and slide $530 Cade 900 S2 system $1000 Ecotech Vectra M2 $530 $2410...
  17. lyswag

    Used dry macro rock

    Hi everyone! This is my first post and I just bought my first salt water tank. When I bought the tank I was given 350 pounds of dry macro rock that was used in it previously and It’s been sitting in a brute trash can for about a year now. I’ve seen people talk about curing used rock and then...
  18. Jack1235

    Single clownfish tank size

    can you have a one clown fish and snail or hermit crab in 5 gallon tank aquarium because I’m getting reef pico 5 gallon pico tank and l like to do it and do you guys recommend that tank size because I’m a beginners
  19. Aussie fish keeping lad

    5 gallon/20 litre beginner reef setup

    Hey guys, I am brand new to the forum and this is my first post, so I dunno weather I’ve done this right but, here goes. I’ve got a mate who wants to give me a 20 litre tank for my birthday. I am fairly experienced in freshwater, kept many species and multiple sized tanks. And I feel like it’s...
  20. Dani_13563

    5 Gallon Stocking???

    Hello Everyone! I am an absolutely beginner with zero hands-on experience in saltwater. I have been researching the saltwater hobby for a little over a year now and I just have a couple of questions. I would like to start a 5.5 gallon nano (pico?) tank (just the basic one from petsmart). I have...
  21. wendyay55

    Still Cycling…We are patiently waiting

  22. B

    New 20Gal Long TopFin Essentials setup + upgrades.

    Hi I am new to reefing and recently bought the TopFin Essentials 20gal long tank on sale. I know the setup isnt the best, but it gives me a starting point to grow from. I am looking to start a tank and learning the cycle and process before adding (2) clownfish, starfish, CUC, LPS, and softies. I...
  23. cyguyry

    Hello Researching and Learning!

    Hi all! I’m from Iowa, have been obsessed with aquariums and small worlds alike since I was younger. Currently have a 37G freshwater, and a 10G freshwater. Every time I go to the LFS or an aquarium, I find myself glued to the saltwater tanks. I love the unique and colorful fish and corals. I...
  24. colsons_critters

    HOW to set up your FIRST SALTWATER AQUARIUM!!! (Beginners Guide)

    CLICK HERE TO WATCH!!! HOW to set up your FIRST SALTWATER AQUARIUM!!!
  25. colsons_critters

    HOW to set up your FIRST SALTWATER AQUARIUM!!! (Beginners Guide)

    HOW to set up your FIRST SALTWATER AQUARIUM!!! (Beginners Guide)
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