Swedish fish - behind the scenes rebuilding a public aquarium

Brew12

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We have 3 lines 1 neutral and 1 ground. L to L makes 400V and is only used in "heavy" equipment and some radiators. L to N makes 230V and supplies every outlet to generally 10 amps/room(s) and lights.
The key thing the engineers apparently somewhat oddly got stuck on here is that they equalise the aquariums to public swimmingpools. Public being the keyword that makes everything 100 times more strict.
I dont know how to say it in english but these engineers choose both safetybelt airbag and a belt around the waist :)
I think I agree with it being classified as a swimming pool since people will be swimming in it. If what their engineers are telling them is actually the code in Sweden, I disagree with the code, not the classification. My backyard pool has a 220V pump and a 120V light below the waterline. But, it is also well grounded and on a RCD (well, GFCI here).
 
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Sallstrom

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So, the goal is to fill the egg crate from one side to the other with frags, one species per row. #sideprodjects :)
65FC6994-F65D-4927-9997-47122B17F8D9.jpeg


Three species done, must do sone more A. efflorescence and A. valida to fill up the next two.
 
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Sallstrom

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And if you wonder about the green hose on the frag plug, that’s because I don’t want the frags to move around anymore. Sometimes it feels like they have legs...
A little bit more work, but in the long run I think it’s worth it.
And the frags gets a little more distance from the egg crate, and hopefully gets better flow.
F0158C53-C1B3-4760-9B14-FD7F339A62F5.jpeg
 
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Brew12

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And if you wonder about the green hose on the frag plug, that’s because I don’t want the frags to move around anymore. Sometimes it feels like they have legs...
A little bit more work, but in the long run I think it’s worth it.
And the frags gets a little more distance from the egg crate, and hopefully gets better flow.
F0158C53-C1B3-4760-9B14-FD7F339A62F5.jpeg
Makes perfect sense. Well, almost. Why green? So many better color options! :p
 
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Sallstrom

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Makes perfect sense. Well, almost. Why green? So many better color options! :p
We have hundreds of meter of green... And my football (you know, soccer) team has green shirts :p

So if there’re 15 frags in each row, five rows are 75 frags. That’s 0,75 frags per square meter in the new reef tank. I must do more frags... o_O
 
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Sallstrom

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Yesterday two steps in the rebuilding process took place.
First, maybe not a big thing in the whole process but for us in the staff and the people in the neighbourhood, the trees in the park were taken down. Taking down trees in the city of Gothenburg is a sensitive thing and sometimes there are lots of protests. I didn’t see any protesters yesterday, so I hope we’re good.
Second, now all the legal stuff is done and we finally have a company that will do all the construction work! So from now on, things might move on a bit faster.
380D10A2-88FD-4990-BC38-DA51AC2F067D.jpeg
538BAC79-80C6-4FCA-89FF-266A44681EBD.jpeg
 
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Sallstrom

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An overview of our temporary coral tanks :)

We used all space we had and managed to fit ten tanks, from 800 to 1200 litre. The water surface area is around 25 m2 in total. The tanks are divided in two systems, just in case something bad happens..
Husbandry wise, we run our way of the Triton method. No water changes unless we need to clean/vacuum or find any unwanted elements in the water. Live rocks, corals and skimmers do most of the work keeping the nutrients down. We do have a small algae refugium in one of the systems, might setup one in the other one too soon.
Running both Triton Core7 and calcium reactors on both systems, to balance CO2 and pH. There’re lots of corals in not a lot of water, so even if the water volumes isn’t more then around 8000 litre in total we need to add a lot of elements.
We use Orphek, Hydra and Heliospectra, all LEDs.
We run GHL profilux as a controller.
Temp is around 25 degrees and the nutrients are undetectable(but we’re adding more and more KNO3 and KH2PO4 to raise the nutrients to detectable levels).

Here are some pictures from the temporary Aquarium :)
90FCDD2A-1017-470E-95E9-3061C1D74ED8.jpeg
8A00A732-806A-4449-8CBB-74B4E94008E4.jpeg
B471293A-286D-4720-9957-944EC33D9D51.jpeg
CE611B69-8665-4156-BA9D-0555D4E1BB8B.jpeg
2B274E27-B09D-4946-9472-71179795DA9E.jpeg
0B48E9BE-5498-404A-B04E-51D51EC5CE90.jpeg
 

Tristren

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An overview of our temporary coral tanks :)

We used all space we had and managed to fit ten tanks, from 800 to 1200 litre. The water surface area is around 25 m2 in total. The tanks are divided in two systems, just in case something bad happens..
Husbandry wise, we run our way of the Triton method. No water changes unless we need to clean/vacuum or find any unwanted elements in the water. Live rocks, corals and skimmers do most of the work keeping the nutrients down. We do have a small algae refugium in one of the systems, might setup one in the other one too soon.
Running both Triton Core7 and calcium reactors on both systems, to balance CO2 and pH. There’re lots of corals in not a lot of water, so even if the water volumes isn’t more then around 8000 litre in total we need to add a lot of elements.
We use Orphek, Hydra and Heliospectra, all LEDs.
We run GHL profilux as a controller.
Temp is around 25 degrees and the nutrients are undetectable(but we’re adding more and more KNO3 and KH2PO4 to raise the nutrients to detectable levels).

Here are some pictures from the temporary Aquarium :)
90FCDD2A-1017-470E-95E9-3061C1D74ED8.jpeg
8A00A732-806A-4449-8CBB-74B4E94008E4.jpeg
B471293A-286D-4720-9957-944EC33D9D51.jpeg
CE611B69-8665-4156-BA9D-0555D4E1BB8B.jpeg
2B274E27-B09D-4946-9472-71179795DA9E.jpeg
0B48E9BE-5498-404A-B04E-51D51EC5CE90.jpeg
And everything looks happy with it :)

How many fish are in there as well?

What/how much are you feeding?

Cheers, Tony
 
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Sallstrom

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And everything looks happy with it :)

How many fish are in there as well?

What/how much are you feeding?

Cheers, Tony
Thanks! :)

I don’t have the numbers in my head, but I do have lists somewhere :)
But the average stocklist for one tank is
-Two or more tangs
-a rabbitfish
-a wrasse
-a filefish
-a couple or more of damsels/cardinals/anthias
-a couple of urchins

Not super heavily stocked, but still plenty of fish IMO.

We don’t have an exact amount of food we feed every day, but about a quarter of a water glass of frozen mysis and the same amount of frozen artemia. Yesterday they got some frozen shrimps with lots of eggs. Some leftovers from feeding other tanks.
We also feed concentrated phytoplankton(EasyBooster) and some live phytoplankton mixed with live rotifers and artemia(every day, dosed with dosing pumps).
Feels like we feed a lot, but the corals work like a large refugium, devouring all nutrients that enters the system :)
 
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Sallstrom

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Wow, nice.. How do you like the orphek?
I think they are fine. I mostly like to run LEDs on all channels at 100%, so I don’t play around much :p
They had a bit more power than I expected actually. So now we run all channels at 70%, if I remember it correctly.
With all channels the same, they have a bit more warm colour tone than Hydra for example. Which I think is a good thing :)

This was on the Orphek Atlantik. Not the bars or the Amazonas. I suspect you meant the Atlantik :)
 

d.fast

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Very cool! Those images are soothing, but there is one question that remains... Is it silent?

And where is the temperate tank? Don´t try to hide it, I am sure you have at least one!
 
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Sallstrom

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Very cool! Those images are soothing, but there is one question that remains... Is it silent?

And where is the temperate tank? Don´t try to hide it, I am sure you have at least one!
Haha, I can’t hear if something is silent in the Aquarium. There’s too much noise! :D

We have four temperate tanks running. They are in a “room” in the room. We try to keep that room a bit colder and there’s an extra ventilation in there. I’ll take some pictures the coming week!
 
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