adee
Member
why do people do it?? i always hear of so and so putting some odd fish (not like a mandarin in a refugium) in their sump.. wondering if there was a reason behind it. also, there is a build up of stuff in our sump (brown stuff on the part under the bioballs) why is it there? is there something i should do to clean it? my skimmer keeps the other side clean i was just being nosey