That was a great way to do it! Wish I'd thought of the stocking with old gravel in it. I kept thinking, what's a good way to keep my old bacteria in there without mixing the old gravel with the new?
Duh, I should have vacuumed the glass bottom, too. But I had left my fish in the tank, so didn't want to stress them out anymore than I already had.
Shoot, I wish I had kept some of that old gravel. It's sitting in the bottom of my outdoor trash can now. But I keep testing my water, and no ammonia or nitrite yet! Haven't lost a single fish or shrimp, either
Thanks for getting back to me. Now I know, in case there's another instance when I need to change out all my gravel.
Duh, I should have vacuumed the glass bottom, too. But I had left my fish in the tank, so didn't want to stress them out anymore than I already had.
Shoot, I wish I had kept some of that old gravel. It's sitting in the bottom of my outdoor trash can now. But I keep testing my water, and no ammonia or nitrite yet! Haven't lost a single fish or shrimp, either

Thanks for getting back to me. Now I know, in case there's another instance when I need to change out all my gravel.