For those who keep native fish, whould they be fed in the winter when kept outside. Ive heard with goldfish, dont feed when the water is below 54. Is this true with channel catfish as well. I have a 5 inch albino in an outdoor pond. The temperature gets to about 32 in the winter. Will it be ok outside ans should I feed it. Ive got a 55 gallon inside if I need to keep him indoors.