Light out nuisance algae control method

[flooddc]

I have been very successfully utilizing light out method to reduced cyano, dino and green film algae (haven't had other, so I don't know id applicable). I am sure most of you here know and familiar with this, I thought I pass it on anyway.

 

Occasionally, these nuisance pop up once in awhile in my tank. So I usually do light out for about 24-36 hours at a time whenever I notice the algae starting to spread.

I noticed green film algae, however, don't completely gone with the 24-36 hours (I like to keep some for the snails). I am pretty sure it can be wiped out with a longer light out period.

[Coral Hind]

Back when I had Pepco I used to do lights like that.

 

Have you figured out what is causing the cyano or dino to pop up? Overfeeding? Filtration issue?

[flooddc]

feeding!

[BaySailor]

I find if I run my MH's more than 6 hours a day, I start to get algae -- despite the fact that my nitrates are 1 ppm and PO is about .02.

[Ryan S]

I also run my system with the lights out for 3 days in a row, a couple of times each year. I consider it a part of my regular maintenance routine.

[flooddc]

I find if I run my MH's more than 6 hours a day, I start to get algae -- despite the fact that my nitrates are 1 ppm and PO is about .02.

Yep! excessive light would cause algae in my tank too.