Planted Tank Guru
Join Date: Dec 2012
Location: Hot Springs Ar. 71901
Best for it to be in a current. Can you see behind your tank ? Marineland has a
breeder box that works like an HOB and goes on the top rim on the back just like an HOB.
You could get the small one(About $9/w Amazon Prime for their free shipping or about $12 without the free shipping) and just fill with bio-media. Really just a sponge would do but something like Matrix/Fluval ceramic bio-media etc will do also. On the Fluval I use their "pre-filter" because it comes in 750g quantities and other similar media comes in smaller amounts. The 500ml size is enough on the Matrix.
The shortest distance between any two points is a straight line...in the opposite direction...