i have green hair algea

Lorna

Elite Fish
Mar 3, 2005
3,082
4
0
NE Indiana
#2
Caused usually by high nutrients....read high nitrates and phosphates....

reduce the amount of feeding, increase flow, step up water changes to reduce nitrates and phosphates......what are you water parameters
 

S.Reef

Superstar Fish
Dec 1, 2003
1,830
0
0
36
Michigan
#4
first test your water for phosphates. are you using R.O.? If not I would switch over to it. If your lights are old that can effect algaes as well. and like Lorna said water changes