This mount clips on to 6mm glass in a sump overflow section. This way you can put a small layer of filter floss in this 'tray' so that you can easily access it to change, and it covers all water that flows through your sump. Specially made for my sump which doesn't support filter sock placement; also this is a cheaper alternative.

NOTE: one side of the bracket is closed, you have to simply mirror the part for the other side. The other side was left opened so that you can easily cut it in your slicer if needed due to different size of sump.

TAGS: aquarium filter sump reef tank