What kind of algae? But anyway, I was in a similar situation. My problem was solved once my tank got establish. If your tank is newly set up, then I would just try to clean up as much algae as possible, dosing correctly, keeping co2 amount in check, and purchasing a few algae eaters such as amano shrimp, sae, and oto cat. I think my best purchase so far for me is the sae. They are awesome lol.