I Have succesfully kept one in my 30 gallon and he is doing great, it is 2 months away from a year of having him, i havn't fed him anything or added anything to the tank, so i have no idea where he gets his food. But needless to say i have a spare tank with cylclyed water and packets of baby mysis shrimp to hatch if he does stop staying fat, and as a back up my lfs sells pods, so i can pick some up, but i havn't seen any pods in months so I'm not sure really what he eats, since he doesn't come out at feeding time, but when i first got him he was very skinny, and his entire body was bent because his stomach was so empty, But he does love my freshwater 2.5 gallon with my ghost shrimp and my frog (not permanant) whenever i do a water change he flares his fins trying to get to either the shrimp or the frog idk why... I think it is a gamble, try to make sure you arent sending the lil guy to his doom... but they are beautifulAlso they may be cheap, around 18-20 dollars, but they are very expensive in the long run if you have a smaller tank, because when you "trial and error" you can blow a lot of money on different types of food, so try the most common first which is baby brine or baby mysis shrimp... then pods, I didn't read this entire forums so sorry if i missed any other examples on food !!!