So I have recently started setting up my new 35G tank. The filter and cartridge are used, bacteria is still there. I bought a few fish, too. They are now in the bags they came with. I had forgotten to wash the substrate which was Flourite Dark Porous Clay and put it in the tank anyways. I have some live plants and driftwood as well. The tank is 3/4 full and EXTREMELY foggy and brownish. I don’t know what to do! How do I fix the water and where do I put the fish? Will they be okay? Please help ASAP!