12-16-2011, 12:32 AM
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I agree with other's ,there is significant waste being produced by current resident's in mom's tank and water changes are the way to dilute the toxin's from said waste.
Much of what the Oscar and other large cichlids eat , is taken in through their mouth's and as much as half escapes across the fishes gills and falls back to the substrate.
Combine this with waste produced (poop),and fishes are swimming in their own waste and frequently become sick without large weekly water changes to dilute the toxins, and frequent cleaning of filters which should be large enough to handle the bioload these fish represent.
Water in tank should test zero for ammonia and nitrites ,and nitrAtes should be 20 ppm or less all day,every day.
Feeder fish unless you are raising them, and offering them high quality food's, are very poor choice for large predatory fish.
These feeder's in fish stores are often kept in horrid condition's, and diseased fish are common in these condition's.
By offering these to the Oscar, disease is trasmitted to the Oscar.
Only takes one sick feeder fish to infect whole tank of feeder's, and they then pass along parasites or pathogen's to the Oscar once the feeder's are consumed.
Quality pellet food 's for Oscar, along with occasional Meaty foods such as shrimp,krill,earthworm,cricket's,crayfish, would be much better from nutritional standpoint.
Last edited by 1077; 12-16-2011 at 12:34 AM..