misterT
Aquarium Advice Apprentice
- Joined
- Jun 26, 2014
- Messages
- 27
Hi there everyone. I have successfully built my own sump. It contains a skmmer section, refugium and a return section. I have some bioballs laying around so I was wondering if i should put them in the sump? Are they a good addition to my sump or are they useless?
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