I think its a pumice stone. It is a naturally occuring rock but not the kind you'll find in a gravel driveway lol.
It's similar in porosity to stuff like biomax, but not as good, but it's reaaaaaly cheap compared to biomax. The stuff is screened and correct me if I'm wrong but it's also washed too?
Its a good bang for the buck
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It's similar in porosity to stuff like biomax, but not as good, but it's reaaaaaly cheap compared to biomax. The stuff is screened and correct me if I'm wrong but it's also washed too?
Its a good bang for the buck
Sent from my SCH-R950 using MonsterAquariaNetwork App