Changing my 180 gal salt to freshwater.
I had bio balls in the pipe to the sump. Recently saw the Seachem product pond matrix. Good idea to use it in the pipe to the sump (which is basically a wet dry), and/or in the sump?
No more protein skimmer so I have a lot of space in the sump, just to fill it up with bio balls or matrix?.
Which of the two products bio balls or matrix - might work better (or any other suggestions welcomed), in the tower from my tank to my sump and in the sump?
And last, with a fresh water tank, how often recommended to wash out the bio balls / matrix?
Also - my sump is acrylic. Wanted to strenghten one corner adding a piece of acrylic as a support. Use regular silicon as the glue?
Thanks, Mark

I had bio balls in the pipe to the sump. Recently saw the Seachem product pond matrix. Good idea to use it in the pipe to the sump (which is basically a wet dry), and/or in the sump?
No more protein skimmer so I have a lot of space in the sump, just to fill it up with bio balls or matrix?.
Which of the two products bio balls or matrix - might work better (or any other suggestions welcomed), in the tower from my tank to my sump and in the sump?
And last, with a fresh water tank, how often recommended to wash out the bio balls / matrix?
Also - my sump is acrylic. Wanted to strenghten one corner adding a piece of acrylic as a support. Use regular silicon as the glue?
Thanks, Mark