Yea, agreed, chromis are "supposed" to be hardy. I think for what he is doing the chromis will work our good. I have been following this thread and after all he has done and re-cycling etc, etc. He is ready for fish pending another water test before he buys. If all test go well, chromis would be an ideal fish due to them being cheap and good tank mates for future fish. He could do a damsel but they are such napoleon syndrome fish.lol (little guys with big ego's) I would not want him to waste the life of the fish and would in no way suggest that but after all he's done, like I said, he should be ready for livestock now! Sorry for the confusion but didn't want you to think I am suggesting a fish, just to "test" it out if it would live or not..