Originally Posted by solo
What's an hob
I'm thinking of the ecosystem like Lang sy created I'm lost on filters
I have no idea who lang sy is. An HOB
stands for hang on back. Are you planning to hang filters and stuff off the back wall of the display tank or are you building an overflow system that utilizes a secondary tank called a sump directly beneath. If you want to do it the right way, have your tank drilled and build a sump.