I am planning on turning an old tank into a sump for my main tank. I am still in the research stage of the project with my main goal to achieve very polished water.
The plan is to have the first stage filtered by mats and sponges (The mat will be replaced frequently). The second stage I was hoping the water could flow over into a set of filter socks. I have found someone on Youtube that has the same idea.
Has anyone tried something similar? Did you have trouble or did it work in the end?
There is the obvious issue of the water seeping through the sides and the filter socks rising. The comment in the video suggest clamping it down with an acrylic top and O Rings. I was thinking of trying O rings and egg crate with something heavy pressing down on the egg crate.