Swap out 6500k bulb

[Mike7744]

I'm using a full sun 6500k bulb and a tru blue t5 bulb on my light. I am having a bad green film algae problem, if I swap out the sun bulb with a tru blue and run only blue bulbs . Will that help my problem? This is a fish only system

 

[Miami Reef]

Nah. I don’t think it’ll make an appreciable impact.

Limit the photoperiod and you should be good to go. Is the film only on the glass?

 

[Mike7744]

No, it comes on everything.

 

[Mike7744]

No, it comes on everything.

As soon as I clean the tank, it comes right back.

 

[Miami Reef]

How many hours are the lights on for?

The blue lights will make the algae less noticeable, but the fish look best under 6500K

 

[UncommonSense]

Around 6000k is typically considered desirable for vegetative growth of plants, but the intensity of the lights and duration of the lighting play a more significant factor in this application!

As I understand it, this is a newer tank; if the algae is coming back daily, it could be due to high nitrates, or it could actually be one of several organisms besides algae!