09-30-2012, 06:18 PM
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Posted via Mobile Device
Originally Posted by AbbeysDad
Maybe you could, but I wouldn't use it. First of all there's the size....larger gravels just beg for uneaten food to fall below where fish can get at it and decay. If you don't keep after it with routine gravel siphoning, you have a 'nitrate factory'.
I've used gravel and now I'm using well washed pool filter sand and I think sand is hands down better than gravel. Detritus/mulm just collects on the surface and slowly decays or can easily be removed by hovering a siphon above the surface. It makes an excellent planting medium and undisturbed deep sand makes an excellent bio-filter. Although I'm using pool filter sand, others are having good success with play sand.