07-19-2009, 09:52 PM
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no, 26gal is not enough for a dempsey,it looks a little young yet so it might work out for a couple of months. jack dempsey's get about 10 inches, it'll work out better in at least a 55gal. you shouldn't feed him any kind of cold water feeders, there fat/amino acids are difficult for tropical fish to diegest. try using guppies,tetras, or ohter small tropical fish. i would advise not getting them for your lfs, the way they crowd them in the tanks and their turn over rate, all it would take is the feeder tank have a parasite or illness and you bring it home to your fish.if you still want to give feeders, i suggest that you get a smaller tank and raise you own like guppies, they breed like rabbits. only use feeders as a snack, his main diet should be a good stable pellet, you can also give as a snack/treat some fruits/veggies (don't give corn - can't diegest) with no skins or seeds. hopes this helps. as far as being gone for a few days, you pet store should sell what is called weekend feeders, it's a cube of food you put in the tank and it disolves/breaks up slowly letting the fish eat.