For those of you with breeding setups where there is a hole drilled in a tank and then a bulkhead added... and return lines across the top with ball valves... if you need to take a particular tank offline you simply turn off the incoming water and let the overflow go to the sump, correct?
I am currently setting up my first tank for "possible" breeding down the road and want to drill it and add a bulkhead but am not ready to hook it to any other plumbing right now... i just want the hole drilled while it is empty so i don't have to do it later after i've got inhabitants in it... so my question involves how to temporarily plug a bulkhead...