If it works then that's what matters. For maintenance sake, I personally prefer a cleaner less complicated sump, but that's just me. I use 7" socks, bio then to the pumps. My only mech are the socks.
But if your water is filtered and fish are happy, job done.
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But if your water is filtered and fish are happy, job done.
Sent from my iPhone using MonsterAquariaNetwork app