Hey guys, I have a 75 gallon tank and i am trying to keep the water dark, I've been unable to find peatmoss anywhere, so ive been using tetra's blackwater extract, it stays dark for about 2 days then it gets filtered out, would it last longer if i removed the carbon from my filters? i have 2 canister filters, one rasted for 100 gallons and one rated for 20 gallon, what would be the consequences of removing the carbon? do you have any other suggestions for keeping the water dark? thanks!