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A lot of guys dont feed their baitfish anything, I usually let my kids feed them goldfish flakes and the shiners love them. However if you do feed them you will end up changing the water much more often. I dont know if it makes a bit of difference to feed them or not but it sure hasnt hurt them.
This is my first year traping them and I just started trapping them two days ago you think they will last intell ice fishing season and changing the water was my next questoin about changing the water do i have to do it often cause these tank i put them in wont be easy
it depends greatly on your set up (tank size) and bio load(# of fish). if you've got a ten gallon fish tank you best be doing water changes and have a filter going, but if you've got 100 smelt in a 100gallon tub then you could feed them every day and never change the water this winter. a good personal set up is 100gallons. i wouldn't recommend anything smaller then 50g. if you aerate the water, don't feed your fish, have a good filter, and you do partial water changes every day, you could potentially keep about 2,000 smelt going in a 100g tub. when you feed your fish there is some food that doesn't get eaten which will break down and pollute the water, but also a fish that eats will produce more ammonia which is toxic to the fish. partial water changes, a cycled filter, and ammonia rid will help combat ammonia and nitrite levels.
Man o man I never thought trapping your own bait haveing your own tanks would be so complicated I thought it would be like any ole fish in a fish tank thanks for all your help guys hopefully I dont kill all my fish before the season even starts
up here it would be deeply frozen in! lol and remember to check it every 7 days now my bait.... I feed them every few days and use pond flakes no more than can be eaten in 5 min.