Personally I don't advocate the use of freeze-dried foods--I have had negative experiences with them causing extreme constipation. Consider the fact that betta bodies were not made to digest dry, air-filled foods, and there is an inherent loss of nutrition in the freeze-drying process. Frozen foods are easier to digest and more nutritionally valuable than freeze-dried foods. If you must use your freeze-dried foods, break them into small pieces and soak them in tank water until completely rehydrated.
Where pellets are concerned, the most important thing is the meat content. Bettas are carnivores and can't absorb nutrients from plant matter, so meat must be the first ingredient. Generally the more specific the meat, the better--for instance, fish meal is not as good as whole fish meal, which is not as good as whole salmon or other types of whole fish. The best foods have multiple whole fish ingredients, such as halibut, krill, squid, etc.
Feeding amount depends on the activity level of the fish--for instance, rosetails, halfmoons, and double tails tend to be less active than veils, plakats, and females due to their heavy finnage. This is just an example, all fish are individuals and depending on their personality, tank size, and temperature may have different activity levels. But on the same diet, the less active are more likely to become obese because they don't burn the same calories. Double tails are also prone to swim bladder problems and bloating due to their body structure, so extra caution should be taken to prevent bloating in double tails.
Feeding small amounts multiple times a day and soaking pellets or other dry foods thoroughly in tank water are simple ways to prevent bloating.
I think someone asked about feeding their cories--keep in mind that cories are omnivorous and have different dietary needs from bettas. It is advised that you supplement their diet with blanched vegetables like zuchini and peas--I suggest doing more research about their dietary needs.
Last edited by Adastra; 07-14-2010 at 02:56 PM.