I was going to try the turkey baster idea, but I moved the rock and saw on the backside some small green hair algae (small patch). Interestingly enough, theres none of this anywhere else in the tank, or on other rocks. Yes, that side is exposed to sun light the most (slightly and indirectly). I may have to change that, and try to increase circulation to that side.
what would be the best recommendation? would it be best at this point to remove the rock and scrub off the algae. What is recommended, would a toothbrush and rubbing that area be best? Open to suggestions on best way to treat this.