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Discussion Starter · #1 ·
These came with my wet/dry sump.





Anyone know if they are any good? Or should I get regular blue bio balls?
 

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Discussion Starter · #3 ·
So do you think I should get regular bio balls then?

Are gaps bad for filtration or just bad because you get less filtration for the same amount of space?

Should I go pot scrubbies or bio balls?

I can get 500 bio balls for $15.

Thanks,

Chris
 
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