andyjs;2122468; said:I would definitely not let it get any higher than 75 just to be safe. Even at that temp, I'd keep the water super oxygenated to be safe. Also, he wont be able to live in a 125 for much more than a year, if that. When young, they swim constantly (at a pretty good speed too) and need a lot more space than some other fish their size. As far as tank mates, they can only be kept with very docile species (nothing that will compete with them for food too much-meaning most cichlids are out). I had a florida gar about the same size as the sturgeon with mine and they did fine. Once they are feed trained, they are fairly aggressive eaters, so the gar didn't keep the sturgeon from eating (the sturgeon did occasionally literally steal food from the gar's mouth though) and both got their fill.
sturgeon are bottom feeders right, I have sinking pellets for my 1 catfish and floating pellets for my cichlids. I find the cichlids content with surface feeding.