I got a senegal bichir from a buddy of mine who had it for about 2 months and I've had it for a month in a 55 gallon, but he was around maybe 2 inches when my buddy got him and he is still the same size, I got an albino at the same time as him and the albino is now around 4 to 5 inches, and got a teugelsi not that long ago whos in the 55 with him who has shown growth already. Is it normal for the grey senegal to grow this slow or not grow at all, eats just fine and is very active but super small, the 55 has a bunch of rosy red minnows and 6 goldfish 2 small 4 decent sized, 2 spotted raphael and a black ghost knife. Water is at a steady 80 degrees. Yes I know goldfish don't need tropical water Temps but they seem to prefer it compared to the colder water Temps. Levels are all good in the tank too