wiktor
Active Member
Yday i moved all my coral and 2x shrimps from my friend tank into mine. i woke up this morning to find my powder brown tang laying dead on the tank floor, You think it’s from adding all that rock and coral? Space ?
What size tank, how many fish?
How much rock did you bring in?
Are you sure the fish was healthy before? Overnight seems awful quick to go from healthy to dead.
How much rock did you bring in?
Are you sure the fish was healthy before? Overnight seems awful quick to go from healthy to dead.
Please give us some more info about the tank and fish---see the link below on how to ask for assistance. Need to know more about size of tank, what fish are in it, how long, water quality, etc.
wiktor
Active Member
Tang was very healthy and was getting better since i got it out of QT couple months back. Rock came from friends 30-40Gal 2x the age of my tank. Didn’t take all rock but basically i have a 250L and his rock+ coral is the middle island basically, quite abit of new rock. Parameters are stable but oh dropped to 7.5. We believe that due to all the added coral the fish suffocated when i woke up it was dead tried to save him but couldn’t, wrasse survived but was gasping for air sat on my mushroom normal side up swimming slowly in one area, clowns and chromis at the surface ‘eating’ air what looked like. I added a protein skimmer since. I have a 5000L/hr pump blowing one side and a 2000L/hr filter on other side but for a couple weeks took the nozzle off to have surface movement. Not sure if it’s a good idea to have it pumping underwater i think maybe good to have it slightly raised so water crashes down creating bubbles to oxygenate water or would you say keep it creating flow in tank.
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Did you add any water from your friend's tank into yours? If so, how much?
Do you have any fish in the tank in addition to the tang and wrasse?
Have you checked your ammonia level?
Do you have any fish in the tank in addition to the tang and wrasse?
Have you checked your ammonia level?
I would make sure something is breaking the surface. Also add a large airstone. I add H2O2 when I have an oxygen drop. I follow the first dosage from humblefish for their ich treatment. They say it increases the oxygen.
humble.fish
How To - Peroxide (H2O2) dosing for parasites in reef tank
***Current dosing recommendation for active outbreaks, using 3% hydrogen peroxide*** (a TLDR for people who just need to know how to get started) Week 1: 1mL/8g, 3x per day Week 2: 1mL/5g, 3x per day Week 3: 1mL/5g, 3x per day, plus overnight dosing. Continue the week 3 dosing regimen for a...
humble.fish
wiktor
Active Member
ammonia is great. 2x clowns 4x chromis, tang(dead) x1 wrasse (L Size) , 1firefish. I woke up to see the clowns and chromis at the surface what looked to be breathing air well trying to. Firefish hidden as always in its spot but wrasse laid on a large mushroom while swimming slowly basically hyperventilating.
IMO, your tank does not have any aeration. During the day the photosynthetic animals put our O2 from photosynthesis. At night, there is no photosynthesis, so all the animals are O2 users, even all the corals. You will have fish death at night since they do require higher O2 level unless you have bubble stone, overflow or anything to agitate the water surface to mix O2 into the water, especially at night.
To me, the possibility of oxygen deprivation due to fish overload doesn't sound quite right. Your tank is approximately 65 gallons? 9 fish may be borderline high, but only two of the fish were large, the two that died. What type of cover do you have on the tank? What type of filtration? Water temperature? The fact the fish were gasping for air certainly sounds suspicious, but I would look for other causes too. Pictures or videos of the fish while stuggling are always helpful.
What test kit are you using for ammonia? Any other additives? What kind of food? Coral additives? Just trying to brainstorm a bit.
What test kit are you using for ammonia? Any other additives? What kind of food? Coral additives? Just trying to brainstorm a bit.
That is not a usual/normal reef tank. There is no overflow and there is a canister filter. There is nothing to agitate the water surface. Even the canister return is under the water resulting in no surface agitation. i am 90+ percent sure that O2 is the problem. Looking closer at the pictures, I can see that there is no cover. If the light turns on and the fish get better, then I am sure this is the problem.
Add the protein skimmer will fix this problem. I am sure the added rock displaced water, so the volume of water is less, and the increase O2 demand from the added animals (corals at night) result in the dead large fish.
Run your skimmer to oxygenate the water, especially at night.
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SaltyT
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I agree with @OrionN on this being an O2 issue. The PH drop and the fish gulping air at the surface point to O2. Reposition your powerhead to get more surface agitation and keep your skimmer running.
In post #5 you said you have since added a skimmer. I think when this happened you did not have a skimmer running. With a skimmer, it should fix this problem.
wiktor
Active Member
My wrasse is still alive but looked gasping for air, only lost the tang, plugged in protein skimmer and seemed okay last night. No cover, temp 26.2C (struggle to keep temp low). Ammonia i use red sea but have year round tester 24/7 in water
