Help! Algae, dark, algae

[Orphan15cs]

What can I use to eliminate the algae without affecting fish. I heard Algae Fix can make fish crazy.

 

[ZxC]

You will have to provide more info please.

Pictures, type of algae, tank size, water change amount + frequency, fish load, fertilizers, CO2, lights, photoperiod, plant health, goals, filter cleaning schedule etc.