Ok not to sure if this should have gone into the plant section but, does anyone know what bright green algae is a sign of?
Its not like the normal green algae, its greeny-blue(bit hard to explain).
It has started to grow over my gravel, i can clean the bottom but it comes back after a couple of days.
It started to appear after i put some slate rock that was on my deck into my aquarium. Any ideas? the water tests ok for ammonia and nitrite, and the nitrates are acceptable, its got me baffled. :-?