jsker
Reefing is all about the adventure
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My Tank Thread
8mm would be best. I built in a drain in mine,Here we have 4 mm and 5mm available or 8 mm.
This translates (roughly) to 1/6", 1/5" and 1/3".
With 1/6" being the most common. You reckon this could be sufficient? (Planning the baffles to be full height with cut-outs for required water level.