I just phoned you, missy.
Yes, a BN pleco would help and number per tank, I'm not too sure. I have 2 in my 90 gallon but they are 1 year old. Two big males who each stake out their own side. They do a great job keeping everything clean. I see them cleaning the airline tubing and they even go down the tubing of the sponge filters!
I know Amber was just saying that her one in her tank is helping get rid of the algae in her tank. A long finned albino BN pleco would look cool!