im building a tank 8x4x4 with a acrylic viewing front. for the inside im going to use fiberglass mat for the seams....and im going to use epoxy for the waterproofing....i was told that i should use a regular epoxy then for a finish coat im using this stuff... http://www.aquaticeco.com/subcategories/3048/Epoxy-Paint-1-Gallon ....... im going to do 4 layers 1 layer with this stuff http://www.jamestowndistributors.com/userportal/show_product.do?pid=3842&BASE , then a layer of the sweetwater stuff then repeat that. for filtration i was thinking a pool filter with a huge pump.....any suggestions or something im miising?