fish_4_all
Aquarium Advice Addict
I took out one half of my undergravel and the tank turned black. I vaccumed every week, getting the tube on the grate and sucked out as much as possible and still had globs of junk under it. Well, half is gone, the other half the first of next week. Now I just have to pray the HOB filter and the sponge filter keep up with the bioload so my fish don't all die.
Wish me luck!
Wish me luck!