Thanks for taking the time for the interesting article. Forgive me if I'm still not convinced by her viewpoint/experience. Here's why. By way of example and explanation all in one, I used to harvest 24" Amazon Swords and make a couple of shop owners smile (I didn't charge for them or trade them). Every two weeks, I'd pull out and/or trim off a 5 gallon bucket of plant material. Just replacing monster plants with youngsters accomplished the effect described in the article. I'm not convinced I've got the right answer--petered out substrate--as I don't have enough evidence but circumstances indicates it remains a distinct possibility. Until I get my higher plants thriving and competing for nutrients, I'll probably suffer from the algal hoards.
My phosphates do not register. Because of very low iron and nitrates, I upped the feeding schedule and am dosing iron and phosphates. So far, no positive results. If the tank hadn't been such a stupendous success the first two years, this wouldn't hurt so bad.:fire: