When to add refugium to a new tank


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Jun 25, 2017
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Hello, I am starting a new mixed reef tank and are about to start the cycling process and am wondering when to add a refugium to my sump. I am going to use the Algae Barn refugium starter kit. I am wondering when to add the components of the kit to my sump. Should I add them at the beginning of cycling when I have nothing in my tank or wait until after cycling when I have some fish in the tank. Thanks !!
Reef Chasers Aquaculture


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Apr 19, 2021
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Southern Ca, USA
Right or wrong I added mine as soon as my cycle was done, and a had a few fish in the aquarium. It is doing a great job of controlling my nutrients. Phosphate is still a little high (.09 ppm) but steadily dropping and Nitrates are hovering between 10 and 12 ppm.

I am sure someone more knowledgeable will chime in, in my mind it is all about that stability, and making a change like that later seems to be a factor of instability (at least over a short period) that may throw off some balance.

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