I have a 37 gallon tank that is home to platies, swordtails, and silver-tip tetras. I have been experiencing problems with swim-bladder, so I'm looking for a change in diet. What types of food could I feed these guys, besides flaked food? Thanks.
Answer on Tropical fish feeding questions?
Swimming bladder could be caused by exceed amount of useless ingredient in low quality fish food.
To feed your fish high quality food, you need to go for high quality brands
New Life Spectrum
These two brands use "Whole Fish" as their main ingredient instead of "fish meal" used by other brands. Fish meal is usually leftover parts of fish.
For the fish you have, I would recommend
Omega One Freshwater Flakes or Omega One Super Color Flakes
New Life Spectrum Small Fish formula
Only feed the amount they can eat in less than 2 minutes. Feed once a day or twice a day at most.
P.S. Fish is creature of habits. It might take time for them to adjust to accept new food.