- Location
- Hicksville, NY
In my Aqueon ProFlex Model 3 sump there is a large blue foam block in the 2nd chamber (separating the center refugium compartment from the R/H compartment where the skimmer and return pump normally go). Am I supposed to leave this in? It's still there. Water is not actually flowing throughit but actually over it...just wondering if it's going to become a detritus trap (and eventually a nitrate factory)?