Fish Died-can't figure it out

[coraline79]

arrow crabs aren't always model citizens, could be he took out the fish. I wouldn't run out and replace the tang though; 30's pretty cramped for those guys.

My arrow keeps to himself gfor the most part. He lives in the middle of my finger leather. As far as the tang goes, he was about the size of a half dollar, and was going to move him to a 250 in July.

[coraline79]

Are you sure your temp isn't fluctuating? Do you have something that may have died and is releasing poison into the water. Do you run carbon?

My temp is steady, I have 2 heaters in my sump, and a pc light over my fuge. The room it is in is heat and airconditioned with a winndow unit that keeps it at 74 degrees. I have checked it in the middle of the night on th coldest nights we have had and still consistent. Nothing has died recently except for the fish, but I have run carbon through it since the first 2 fish died. I don't run carbon on a regular basis though.

[coraline79]

sorry so long between replies, I have family in from out of town for my daughters baptism.