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I agree that in planted tanks the nitrate cannot be considered a guide because they specifically are removed by the plants while all the other things that build up are not. I thought I had made this clear in every post. The nitrate is a good guide IF and ONLY IF there is nothing removing nitrate specifically (live plants, adding prime, using nitrate specific media, using a denitrator, etc.). If this is NOT the case THEN nitrate will still build up over time, just like all the other things.
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Originally Posted by Fishguy2727 View Post
Having kept, and am keeping ,various pleco's of all sizes,species,(love them) I can only chuckle at your belief that they somehow keep the tank cleaner.
These maint fish as you call them excrete two to three times the waste of smaller group of fish such as tetra's,barbs, depending on activity level's of particular species.If it's more fish you want, then forget about pleco's for the input from fish to the system is greate than a few smaller tetra like fishes .
Many of them(plecos) require their own diet (omnivores,carnivores,herbivores) for long term health, which can add also to waste created in the tank and most prefer moderate to swift current's which some,, (ok alot) of smaller species don't appreciate.
I also am amused, by your opinion that a simple air pump could support a tank for up to a week with no mention of plant's or bio-load.
Sure ,bacteria on substrate exist's, as well as on decor, but biological oxygen demand(BOD) is also high depending on number's of fish and organic input, and bacteria in filter that shoot's crap's begins to die off fairly quickly,(perhap's sooner than a week) and dead organics are then pumped back into the system once the filter return's to service.
Can create very low oxygen situation until filtration resumes.
Larger surface area is agreed by most, to support better oxygen exchange at surface than smaller surface area, and I have yet to hear any opinion's,nor expierienced anything that would lead me to believe otherwise.
Simple DO meter would provide more accurate assessment than my or your opinion.
The most important medication in your fish medicine cabinet is.. Clean water.
Last edited by 1077; 07-25-2012 at 07:13 AM.
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