Quick question, I am hoping that someone can identify what I think is a problem. I seem to be getting alot of green algae on my glass as well as some dark kind of spotty algae on my leaves of all of my green colored sword plants but none on my crypt's or my red leave style swords. I inject c02, my ph is around 7.5, KH is at 14 and no amonia, 55 gallon tank with 4 - 32 watt 10,000 K lamps burning 10 - 11 hours a day. I run one canister filter and one magnum filter. Even the bacopa gets the black spots on the older leaves. Newer leaves do not get the black spots. My crypts are growing real fast as well as my red leaved style sword (kinda of red and green). What do you think?