Posted: Sat Apr 28, 2007 2:37 pm
Algae often forms on the edges of basking areas where they meet the water.
The light, warmth and nutrients in the water all contribute to it. Does the green rub off easily?
How often do you change the water and clean the tank? What kind of filter are you using? If the water gets really dirty, a residue can quickly form on objects in the tank.
When does your turtle make the "rubbing eye" behavior? If it's after he's been basking for a while, does he make other movements as well? If so, he's probably getting a little warm and at some point will go into the water to cool off.
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-