Hello I am looking for info and ideas to design my first  aquaponics system. I have a 4'x 8'x 18" tank with some kind of black whatever on fiberglass, plant nursery used it for a display .. they had fish and plants in it.Then I have 2 black liners that are 4'x4'x 10" they have a small run over spout they probably are used in making waterfalls for ponds. I also have a 27 gallon rubbermaid tub that…