Looks like it's the "too much" kind. ;)
Can you post background and water test results for the tank? Please include no3 and po4 as well as anything else you track like s.g. and temperature. Background should include how the tank was started, how it's being cleaned and filtered, and anything else interesting about it. Also descibe your cleanup crew in detail, including numbers....looks like there might not be one yet?
If you can get a closeup pic of the algae it would help. Also, describe it in ways that don't come thru in the pic: is it hard, slimy, dusty, glopy, etc?
From what little you provided to go on, I think it looks a bit like chrysophytes.