Green water??

[ckmullin]

The reason why I ask is that it will never go away unless the root causes are looked at.

Does this tank have any sunshine?
How long is your photoperiod? (what lights?)
What sort of substrate do you have?
How much do you feed?
What is your filter?
How much for plant do you have...and what kind of plants?
How often and how much do you do for a water change?
Do you have any other algae growing? GSA, BBA etc.
Do you vacuum your gravel?