The Planted Tank Forum - View Single Post - Active substrate end of life, time for a new tank and idea
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Old 12-23-2012, 11:41 PM   #45
Green_Flash
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Cool thread to read.

Quote:
Originally Posted by GeToChKn View Post
In realty, fitration is filtration, no matter if it's a big sponge like thing, a sump, 9 canisters chained together, whatever as long as the BB have a place to grow.
Very true. there are TB breeders that use only sponge filters as filtration.

the flourite is a non active substrate correct? meaning it won't dissolve or leach back out things?

could crushed lava rock (like GLA sells) be used a similar/cheaper substitute?
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