Quote:
Originally Posted by cricket george
A 55 gallon drum will work fine for keeping 10 dozen minnows. I would suggest you build a bio - filter to remove the ammonia and digest the waste. I would also suggest you add aeration too. The 500 gph pump will recirculate the water fine but the water needs to be pumped thru a bio filter to process the waste.
If you do not want to build the filter then you need to exchange the water weekly to reduce the ammonia build up. I would suggest you add 3 ounces of rock salt to the barrel to promote the slime layer that may be removed from handling before you bought the minnows. In addition purchase some tetracycline from a feed store and add 1 tablespoon to the barrel. This is an antibiotic and will kill fungus and promote healing on the minnows skin. The rock salt should be added at each complete water change.
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Ok. I got the filter and extra aeration , have not used no salt or antibiotic, had this tank going for about a year now, My question is.... how often should I change out the water? I used a deep freezer , 13 cubic foot, works good, I was changing the water about every 2 weeks but I got lazy have not change it in over a month now, I do clean the filter about once a week. No problems yet.