Two dead fish - advice needed.

tranto1

New member
I'm looking for some advice, I have no idea what i'm doing wrong but I now have two fish that died in the same week. I had a copper band butterfly and a powder brown tang. Both were in week 3 and 4 of QT. Each were in their own 20g long with sponge filter, powerhead, heater, air bubbler and pvc. They were both doing great, eating like pigs. I fed food enriched with selcon vitamins. Water changes twice a week. salinity at 1.024

One morning I found the powder brown tang laying on the side, breathing very fast and his stomach area looks expanded - like he ate way too much. He died the next morning. The following day, woke up to find the copper band dead and he had black marks all over - like bruises. They were both fine the night before, eating and swimming. I did water test and everything was fine.

Any advice?

I currently have a male and 3 female lyretail anthias in QT and i'm looking to avoid making any mistake.

Running no copper, TTM the first 12 days for ich preventative, then two weeks of feeding and observation. I do have an antibacterial food (Dr. G) that i feed once a week and I have prazipro on hand along with cupermine.

Help please!
 
The fact they died almost simultaneously points to some external contamination. Or just had luck with some disease if you got tuem from the same source.
 
If the LFS runs low levels of copper based on the timeline it sounds like velvet. Check with them to see if they run copper.
 
Are those in the same tank(s) as the fish that died or do they have their own tank?

They're in their own tank. I got them from a different place than i got the powder brown and copperband. The LFS that i purchased my powder brown and copperband from did run copper, but i don't trust their levels.
 
They're in their own tank. I got them from a different place than i got the powder brown and copperband. The LFS that i purchased my powder brown and copperband from did run copper, but i don't trust their levels.

A lower than therapeutic dose of copper will mask a variety of parasites. And the odds that the LFS ran copper at a therapeutic dosage is not good.
 
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