Thanks re: the cabinet. I'm finding that making the cabinets is the easy part of the whole SW expereince
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I appreciate the advice on the ATO - I'll be doing "take two" on that tomorrow.
And thanks for the comment re: live rock in the sump / DT. We did put about half the live rock in the DT and half in the sump. I guess that the next step is to wait for the ammonia levels to get to zero.