kyle77cutlass

Please someone explain to me why i have black algae at least i think thats what it is it just keeps coming back is it dangerous? it doesnt seem to affect the fish

sirdarksol

Welcome to Fishlore! I moved your thread into the general discussion area, as it had been posted in the "how to" section regarding aspects of using the forum itself. It should get a bit more notice out here.
Is your tank freshwater or saltwater?
What does this algae look like? Is it short, fuzzy, hairy, just little spots on the glass? Is it actually black, or if you look closely, is it another color.
What are the ammonia, nitrite, and nitrate readings in your tank?

kyle77cutlass

it is completly black and not fuzzy or hairy it looks smooth it grows on the leaves of fake plant and my ornaments and in my filter and i dont have any of the testers

COBettaCouple

Welcome to Fishlore.

I'd get the API master freshwater kit. You may have high nitrates. Also, how long each day is the lighting on? Is there any other light that reaches the tank, like sunlight?

kyle77cutlass

no sunlight i turn the light on when i wake up and off when i go to bed

COBettaCouple

You can try to run your lights shorter periods, say 8-10 hours per day.

kyle77cutlass

so you figure its just a lighting issue? i also have a temp of 72 degrees my heater just broke so i need to get a new one