diminishing water quality

[suchinadhlakha]

I recently purchased a power compact 196 watt lighting systmem for my 40 gallon tank and there is red slime algae and bubbles collecting all over my live rock. There has also been an excessive amount of green dust algae collecting on the glass and the subtrate. Anyone know what typically causes this. I just did a 20 percent water change. Any suggestions would be greatly apreciated.
Suchin

 

[beaslbob]

The red slime is probably cyano bacteria. It feed off of phosphates. The green is probably hair algae which feeds off of nitrAtes.
I can not tell what you have in your system but both would be reduced or eliminated by adding (or adding more) plant life. Either macros or marine plants will consume the same nutrients and therefore starve out the red and green uglies. Plus the plant life does so much more for the system.