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I guess I assume they would do the depressions that way, but it's a good point that I need to make sure that the diameter is adequate for the 3 3/8" flat spot necessary for the vortech motor.
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Simon
Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones!
Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs
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