Originally Posted by bioteacher
I have to disagree with the hardiness of chromis. Like many others have said, I have had the same experience as the op with chromis. Started with 5 and they pick on the smallest one until he dies then they move on to the next smallest. My lfs
has said the same thing. They have trouble with them too.
They used to be a little hardier. I'd almost never see a dead one back when I ran a shop (about 10 years ago). I wonder if it's the source, capture method, the distributers or something else. It's sad to see how few are making it these days. They're beautiful.
Well, at least it may be something other than Dan's tank. I "really" believe a different species is the way to go after reading your post bioteacher. I'd still try something cheap and resilient like a damsel, just to rule out the tank. Some chromis must be surviving at the shop. Maybe trying a LPS
that guarantees their fish for a few days would be prudent. Just a thought.