a refugium can help but if the pods cant get back to the DP then not so much
I have a m+f green mandarin and scooter dragonette in my 120 and they are all fat.
Here's what I do...
1. Layer the rock with oyster shells between. This helps to create places where the pods can grow in peace.
2. Create little rubble piles where pods can breed (in areas with med flow to avoid debris pile ups)
3. add a HOB filter full of LR rubble to the tank. Pods will grow in the filter and flow back into the tank.
I also recently added a sump/ fuge above my tank so it gravity feeds back to the DT. (see cryptic tank)
HTH
Blaine
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