ph problems

[inadaze]

My aquarium is over run with algae. So, I have been trying to buy different algae eaters to do some work in there but they die after a night or two. They might be inferior quality, but I know that my ph drops from 8.5 to somewhere around 8.0 when the light goes out. Does anyone have any suggestions about keeping my ph at a regular level all the time?

If you know of any ways of getting rid of green hair algae let me know too.
I already changed my lights and nothing happened.

Thanks
Jay

[johnydart]

I was always under the impression that Ph changes with the light cycle.

[rbb213]

Is it known that in the evening times the ph will drop +-.3~5....

[Morbo]

Drip kalkwasser at night. It will keep ph up and precipitate phosphates

[blueface]

I agree drip kalk at night