I have a 10 gallon tank with some neon tetras in it. I have a bunch of tannin in the water due to some driftwood. I've been told activated carbon can sometimes get rid of the color. So I went out and bought some.
Here's the thing... how do I use it? Do I just put some in a sock and stuff it in the filter? That's the best idea I can come up with without having done this before.
How does everyone do this?
Here's the thing... how do I use it? Do I just put some in a sock and stuff it in the filter? That's the best idea I can come up with without having done this before.
How does everyone do this?

