How big is your tank? In a large enough tank, maybe. However, your Lemonpeel is already established in your tank. There will probably issues, as Lemonpeels can be aggressive. If you added both in a tank at the same time (assuming it was large enough) you might be able to do it. You might try redoing your aguascape & adding the Potter's as the lights are being turned off.
If your tank is 50 gallon or smaller, DON'T Do IT!
Sincerely,
Matthew