A quick answer would be appreciated as I'm going collecting in a few hours. What would be the best number of creek chubs to put in my 30 long (36" x 12" x 16") with a single female green sunfish (currently 2.5") as a tankmate. Yes I'm fully aware that creek chubs could potentially outgrow this tank and as soon as they hit 6-7" or so I'll put them in my 75 gallon if needed. For now I'm more concerned about bioload and territorial aggression between the sunnie and the chubs so I don't want to add to many but I want to add enough so the chubs don't get stressed (I had 1 creek chub in there at one point and it didn't end well since it got stressed and died). The filtration is a sponge filter rated for a 50 gallon and I do 10 gallon (1/3) water changes every week. So how many chubs?
