attaching a sump/fuge to an existing tank

legend

Member
Ive had my 20g reef tank setup for awhile now without a sump/fuge. I built a sump/fuge for this aquarium..its another 20g tank. So its a 20g reef with a 20g sump/fuge. I have the sump all setup already with live sand, some rock and a 130w pc over it. All i need to do is get a return pump and a overflow box and itll be complete.
The thing is how long should i let this sump/fuge sit before i think about connecting it to the main tank? I dont want to lose anything from the main tank because i have lots of nice yumas in there. I have the sump and fuge sitting here for about a two weeks now. I'm going to also be using the fuge as a progation area for my ricordia and xenia.
Any tips?
 
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