| Re: Substrate decision out of those i like the Aragamax Aquarium Sand. that size you listed is sugar grain size 0.2-1.22mm, you might want to check out CaribSea oolitic sand. its also aragamax but comes in grain size 0.5-1.02mm. it does not have the smaller grians (0.2mm opposed to 0.5mm) does not go as big either but not having the small grains, IME, really helps keep it from gettting blown all over. so i vote other; Aragamax Oolitic sand.
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