Thanks Tscoots, I'll also be picking brains. I'll be upgrading from 55 gal - 75 gal soon. I just moved from Great Kills to Eltingville & for convenience, time & nitrate reduction I went BB & removed bioballs from sump. Since I'll be switching tanks again when I'm settled, I thought no sand would be cleaner & less stress on fish. (And actually it doesn't look too bad). I got rid of the bioballs on the advice of MR members. Quick question: using W/D filter - w/bioballs there was very little noise in sump. Now w/the water dropping from drip plate into sump, it sounds like a waterfall. How to fix????
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