Originally Posted by CorallineAlgae
That's why I thought only three would be the way to go. Just to make sure, don't use any aerosol air fresheners or plug ins in the tank room. The skimmer can pull that stuff in. I'm sure it's something else but I thought I'd mention it.
In these cases I always pop a Chemi-Pad in the tank. What it removes I couldn't say but it's like a silver bullet for unknown "bad stuff". Maybe try a single hardy fish in the sump. Like a yellow tail damsel. They're very sturdy and you could remove it to take it back after you ensure the tank is ok. I'm sure I'll get a LOT of flack for suggesting that but it's honestly what I would do. It'll tell you two things: 1st is the tank safe for "hardy" fish, and 2nd it will rule out a bad batch of green chromis.
Good point. A damsel in the sump wouldn't be a bad idea. Because my nitrates aren't terrible, and I'm getting ready to do another water change in a couple hours.
I think what I'm going to do is just wait til I get my nitrates to 0 then go slowly from there, plus I ran into unexpected financial problems anyways :/
Oh and I did just add 2 blue legged hermits and 2 red legged hermits in the sump so I guess we'll see if theyll survive