Sand
Try to turn down your filter flow until it settles. At some point you may want to use a quick filter or micron pad to remove anything that still lingers… With the lower flow rate it should help to let it settle.
If it becomes a constant problem, add a little larger grained sand on top…
PS. What kind of sand did you use?
Giancarlo Podio, LMD
Category: Philippines Internet Koi Society
