Blackouts are effective in eliminating algae. I would do that first before adding anything to your tank. Blackouts are free, UV and chemicals aren't.
Do a 50% water change. Raise the spray bars in your tank (if you have any), or add an airpump + stone to your tank to increase surface aggitation. Cover the entire tank with heavy blankets or black garbage bags. Make sure light cannot enter the tank. If you have a CO2 system on that tank, shut that off as well. Wait 3-4 days, during this time, don't feed your fish... don't worry, they'll be fine. After the waiting period, remove the blankts and or bags, return your spray bars, etc. to their normal levels, and do another 50% water change. At this time, if you have plants, dose your tank with KNO3 so that nitrate levels are back up to the 5-10ppm level (not needed if its already there), and restart your CO2 system.
Blackouts can help get rid of algae, but if you don't solve the cause of the problem, the algae will smile and come right back at you. Algae problems are usually an indicator of somewhat bad nutrient control. If you can give us more information regarding your tank setup, maybe we can help you fix the root of the problem.
HTH
-Richer
Do a 50% water change. Raise the spray bars in your tank (if you have any), or add an airpump + stone to your tank to increase surface aggitation. Cover the entire tank with heavy blankets or black garbage bags. Make sure light cannot enter the tank. If you have a CO2 system on that tank, shut that off as well. Wait 3-4 days, during this time, don't feed your fish... don't worry, they'll be fine. After the waiting period, remove the blankts and or bags, return your spray bars, etc. to their normal levels, and do another 50% water change. At this time, if you have plants, dose your tank with KNO3 so that nitrate levels are back up to the 5-10ppm level (not needed if its already there), and restart your CO2 system.
Blackouts can help get rid of algae, but if you don't solve the cause of the problem, the algae will smile and come right back at you. Algae problems are usually an indicator of somewhat bad nutrient control. If you can give us more information regarding your tank setup, maybe we can help you fix the root of the problem.
HTH
-Richer