Fishes suddenly died

AzureTempest

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I have a 32 gal biocube reef marine aquarium that has been cycled for about 6 months. I have anemones and soft corals, 4 clowns, 4 anthias, blue and yellow tang(both very small size). with cleaner shrimp. All the water parameters were good and all the fish had no issues since being introduced 2 weeks ago. they ate well and swam around. Blue tang had some ich issue so i decided to over feed a bit to help get its strength up, but two days ago I realized i over fed just a tad bit and saw free ammonia rise from 0 ~ .05 so i dosed a the directed amount of Seachem prime. yesterday my girl friend accidently left the stove on and the soup we had burned all day while we were at work, and the house smells like smoke everywhere. This morning the blue tang seemed a little stressed but rest of the fish looked fine and was swimming well. I came back from work with ich meds from seachem to dose the fish with the foods but I realized one anthias, yellow tang, and cleaner shrimp had died. Was it the smoke or what could have killed them? **side note. the shrimp had recently molted like 6 days ago.
 
Just a guess but I would say it's from the ammonia as the bacteria population couldn't handle the fast Bio load of all your new additions that's assuming I understand you just added everything at the same time.
And welcome to R2R!!!
 
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+1.

If I understand your post, you added all the fish at one time. That's a lot for any new tank. If it's possible, see if your LFS will take some of them back for a while. Actually, if I were you, I would consider a new group of fish. I have a 32 Biocube and I have 1 clown, 1 sunrise dottyback and one pygmy angel. I won't add anymore fish... a 32 just isn't big enough. If you're absolutely in love with your present group, be prepared for them to fight and accept you may have a few health issues due to stress. This would be a great opportunity for a upgrade! Blue tangs (even tiny ones) need about 4-5 feet of lateral swimming space. Once they grow, they need about 180 gallons (in my opinion) to be comfortable. Clowns are notoriously aggressive... some species more than others. What kind are they? Your anthias may start beating each other up too, depending on your male:female ration.

Good luck and ask all the questions you have.
Welcome to the reef!
 
I had the clowns in first with the shrimp. for a few months, then the blue tang went in for a few weeks then the rest were last addition.
 
Wow. So much wrong with this situation. Best advice is to return all of your fish to the store aside from 2 clowns, do a ton of research, and then slowly add more appropriate fish.
 
Neither Tangs or the 4 anthis will have room to swim within the next 3-4 months at most just to small of a tank. Personally I would not put any of those in a tank less then 200 gallon but that's just me. Your size tank will truly only handle your two snowflakes and a few firefish and a goby safe and humanly sorry to say.
 
i was planning to set up a 20g sump system to deal with the bioload

Your sump doesn't help the fact your anthias and tangs need a lot of swimming room and will likely end up fighting and stressed.

It's just not fair to the fish.. get a larger tank if you want fish like that.

All those fish poop and pee and are ammonia factories... That tiny amount if water and limited biological filtration... They most likely died from ammonia poisoning.
 
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