11-16-2012, 03:08 PM
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Originally Posted by redchigh
In my opinion, (and others will surely argue even my exceptions), a planted aquarium can thrive without many water changes if it has a massive colony of anaerobic bacteria (such as with a well established and stable deep sand bed or a soil (ie, topsoil or dirt) sublayer...
Anaerobic bacteria brings its own risks though, and the "break-in" period for such a substrate can be risky, and isn't for the feint of heart.
I use soil, and my tanks rarely get a water change... But I've also had two different tanks fail during the break-in, which killed most of the livestock.
What's the benefit? Higher CO2 and no need for fertilisers...
Is it worth the risk?
Its up to the aquarist to decide...
So what would you suggest?