Well, I took out about 20L of water, replaced it with salted water. Caught about 4 Ghost shrimp, 3 snails and took out all the plants. I also caught the tiny baby that was growing in that tank because w/o the plants, other fish would see and eat it. It's now with my other fry, even though it's twice as big. All went into the Livebearer tank, I've been medicating it with QuickCure, took out about 20L and replaced it with freshwater. Hopefully it wont kill what I put in the tank. I didn't find the tiny Pleco, the big guy was happily sitting on his wood and I left him be for now. If I can find and catch the tiny Pleco, she will be moved to the Livebearer tank too.