Well I always scrub it off with a algae scraper....but I only house my bettas alone since I don't have very good luck with tankmates! So since you have invets I'm not sure if you should leave it or not! So I guess I'm not very much of a help lol!
R.I.P I will never forget you Alexander. You brightened my life
♥Alexander ♥- Maroon VT 11/14/10
I miss you every single day. You were more than just a pet to me. I love you forever and always. I hope you always know that I would have done anything to save you.