green algae on glass

[Tom@HaslettMI]

To some extent algae growing on the glass is unavoidable. High nitrates is only one of many things that can cause algae growth (probably why you don't have set-in-stone answer).

Here are a few questions that may help us help you reduce the your growth.

1. How often do you have to clean the glass?
2. What does the algae look like? A picture would be very helpful.
3. How old is the tank?
4. How many fish do you have?
5. How much (and often) do you feed the fish?
6. What type of lighting do you have?
7. How long are the lights on?
8. How old are the bulbs?

With answers to these (and possibly other) questions we should be able to give you suggestions for reducing the algae growth.

Tom