So in resetting my 25 gallon I had some heavy algae build up. It was on rocks. I tried (at risk of destroying it) to use my magnafloat. Fail. I tried my fingers. Fail. I tried my towel. Fail. Then I tried a handful of wet black diamond blasting sand. IT WORKS GREAT! It took it all off very very effectively. So just a tip!
Thanks and God bless!
Thanks and God bless!