wish texas holy rock was way more cheap, i'm down to buying it in little pieces, and has any one noticed that texas holy rock builds up algae way faster then others rocks, it will be completely green in a week and the other rocks and glass and even my white sand take about 2-3 weeks before it has a good amount of algae on it. texas holy rock i also found out is a Pain in the A$$ to clean and make white again, any ideas on how i can get all the algae off it and keep it white, i know more algae will grow on it but when i clean it off i would like to see it white again.