At the end of May I collected a pair of Greenside Darters, a young female Green Sunfish, and a 4" Creek Chub at my local creek. I put them in a 30 long and within a day the Green sunfish had murdered the chub although she paid little attention to the darters due to the fact that they didn't compete for food and posed little territorial threat. Well now the sunfish has put on at least 1" and the darters have gotten a bit bigger. I get home from vacation today and all of them are still happy and healthy but I noticed that the green is slightly bigger now than when i left with more vivid, darker colors and my male darter has a tear in his 2nd dorsal fin. Well I can put two and two together to figure out whats going on. I knew this was bound to happen but I was hoping to already have the darters into the riffle tank I'm making before aggression popped up. Well I'm still 1 week at the BARE minimum from having it ready so I need to calm the sunny down until then. I think part of the reason may be that when I say I have athletic Greenside Darters, I mean it! I hear people on NANFA people say that their greensides don't ever leave the bottom and have to be target fed while my two swim up to the top of the tank even when it's not feeding time and have to trouble whatsoever getting food. Regardless I need some suggestions on how to calm down the Green Sunfish or I'm going to have to put them in a rubbermaid bin until I can finish the riffle tank.
