Green algae on glass

[drsteve2001]

I have green algae on the back glass...because I never clean the back glass with magnet only the front. This algae is hard and actually wouldn't come off with the magnet....do other people scrape it off. I'm I hurting the tank?
Another problem just recently is the front tank glass and the sand bed seem to be getting dirty much quicker than normal? Is it due to the slight increase in tank temp 82-83 with summer being here...normally at 80..my tank has been up for over a yr but last yr didn't have MH lighting.

 

[mrdc]

Everything sounds normal to me. The hard green algae is probably just a form of corraline and I leave it alone. I never clean the back glass. If it's soft green algae, I would bump up my snail stock in hopes that they will take care of it. My front glass has to be scraped every other day or it will become a mess.