cheapest substrate

Fishface

Active Member
Member
what is the cheapest substrate I can use that won't rot, clump, or affect the hardness or pH of the water?
 

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. But you could just go to a dollar store and buy bags of glass marbles and that would work well too.
 

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I agree. The natural gravel looks cool. We have black n' white gravel that looks pretty cool too.
 
. But you could just go to a dollar store and buy bags of glass marbles and that would work well too.

One of the Dollar Tree stores here has those river rocks in 2 lb bags. Maybe one near you would too?
 

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