11-07-2006, 03:20 PM
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Originally Posted by bettababy
It is true that the synodontis will prefer the higher pH, and as for the sand, what kind of sand is it? Aragonite sand will bring the pH up. Play sand will do funky things to your water quality all the way around. Silica sand should not affect the pH, but is not usually the best choice of substrate in an aquarium. Plants have a difficult time taking root in the sand, and it's much harder to keep nitrate levels down with sand. Sand is much harder to clean when doing a gravel vac and will quickly clog sink drains if sucked up.
And there you have it in a nutshell. :D One thing there I'd like to add, Sand can be murder on your Impeller Assembly.