Looks like a flatworm. Rarely a problem, especially when it's only one. But there are exceptions if you search enough threads. I don't think I'd bomb the tank with Flatworm eXit without confirmation of type.
You might want to get yourself some airline tubing and manually remove what you can now before they become a problem. While they might be harmless there are some things are tanks can do without, this being one of them IMO.
Yea I'll try with the airline hopefully that takes most of em out I should be stocking the tank starting in November finally hopefully hat helps as well