I dont have one but my lfs did for a short time, wouldnt eat anything offered but ate a live small shrimp, but wouldnt eat another one. Couldnt get him weaned onto frozen or pellets, no interest in live brine etc. It died. They are gorgeous fish but they get 2-3 feet in the wild. Not to be judgemental but I dont imagine you have the space to upgrade for that kind of fish as it would need a 300+ gal system at least- (if you got it to adulthood)- and putting it in a 90g which is knowingly way too small is a death sentence anyway. These fish have a history of short life spans in the home aquarium, typically run about $100 per, and really arent a suitable tank fish. Id find something you would have more success with, for your sake and the fish.