Quote:
Originally Posted by beaslbob
I've read several articles like that excellent article you linked.
Even with all that, the best and most effect method in a tank balanced out with macro algaes is to simply kill the display lights.
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I agree to a point...Cutting the lights will slow the growth, but not taking care of the underlining problem (excessive nutrients). I have seen tank loaded with macro's and still have outbreaks of cyano. Then there are other factors as well flow is one of them. Like dead spots behind rock work and so on. Taking light away doesn't take away the fuel needed for it to thrive it just dissipate it over that time of no light. But soon after the lights come back on if the conditions are the same it will start to build again. This is why you have to find the source in order to combat not only cyano but other bad algae's as well. Or simply give it a place for it to grow i.e. turf scrubber. We will have algae in one form or another as long as we put light in our tanks. I had 0 No3's and 0 Po4's for about a Month before I added the scrubber. I honestly didn't think I was going to grow anything just goes to show it's not just Phosphates and Nitrates at work here.