Quote:
Originally Posted by HOLLYWOOD
I dont understand the whole reasoning of the predrilled base you've created and the bio media underneath... Overtime AMAZONIA soil will break down and fall through each hole and cover all your fluval biomedia redering them useless,,, unless they have another purpose you've designed them for. As it stands it appears to act like an UGF however you will have gasses traped underneath.
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I repented of put some carbon and ammonia removers,and i will change the sand after setup 6-9 month~~~~~i read posts from some CRS forum,they are most change the sand every year.
since ADA soil break up fast
