I'm going to build my own under gravel filter...I was going to use pvc and some other random things for the tubing thats not the problem..
I was researching using activated carbon for making a home made filter is this ok to use in large quantity's?
How can I impliment carbon and zeolite crystals?
I was researching using activated carbon for making a home made filter is this ok to use in large quantity's?
How can I impliment carbon and zeolite crystals?