Green Chromis

[TRichardson79]

So I introduced 2 of these fish on saturday night to my 75g . One of them died within 24 hrs, I still do not know why. Possibly the other one being a bully.
This one I have left is going extremely well! The color has increased dramatically in the past 24hrs and so has his appetite. The only problem I have is it stays up in the right hand corner behind the K4 all the time. The only time it comes out is to chase food in the current.
Will this fish eventually use the whole tank or just this small corner? Is the fish trying to get used to it's surroundings?

[Gwynhidwy]

In my experience single chromis tend to hang out in one or two preferred spots most of the time. When I have kept them in groups they spend most of their time in open water. For what it is worth, I think it is unlikely that the other chromis was bullied to death by the surviving chromis in that short of a time period.

[Moebuis]

I've always ended up with just one chromis. I added 5 and then replaced them as they "disappeared" but gave up. The single one that is left loves the open water.

[Dadekster]

I kept three in a 58 gallon at one point and now have 7 in a big tank. In that time I have never lost one to interspecies aggression. From what I have observed, from countless hours of watching them go from little juvies to pushing three to four inches is that as long as you have other fish in the tank that will take a run at them every now and then for whatever reason they don't spend as much time trying to beat each other up. Mine will lock lips, flare at one another but that is it as far as establishing position from what I can tell. Who knows, maybe tomorrow the blood bath will begin. ;)

As far as what takes a run at them in my tank, (by which I mean will swim at them and chase one of them for a second or two) I have a hippo tang, lubbock's wrasse, and a yellow tail damsel that will do it. There is never any real aggression, seems more of a reminder of where they stand in relation to one another altho why a nine inch long tang needs to do anything like that is a bit beyond me.

[victor90]

They do well in groups but they are a finicky fish. If they make it past the first week then they will survive

[stykthyn]

I bought a school of 12 one time and in three weeks I only had one left. at first I thought it was the Niger trigger picking them off, but after watching them for several days i saw they were indeed killing each other off.