I practice what I preach. I am using the entire House & Garden Hydro nutrient program. The only additional amendment is Mammoth P.
In my last grow "INB" I added the Algen Extract to my reservoir. Even though it is a very "Refined" product being a vegetative fibrous product it mucked up the tank. I do use the H&G Drip Clean product (Remember I use the entire House & Garden nutrient line for hydro) I was concerned it could clog the drip emitters, it didn't, but i worried about it. It did make a clogged mess of the filter on the pump that stirs the reservoir. As you know I have a lot of experience growing vegetables/flowers organically in my outdoor living soil. Kelp has been an amendment to my living soils for 40+ years. It's use just makes sense on so many levels. I have a hard time growing anything without it. I believe - without scientific proof - that it adds characteristics to the flavors of the product that are missing in many hydro grows. So I am going to deviate from the original "Precise drip irrigation method" used in the last grow - Just a little. Once a week I will pull 21 ounces/621 ml of PHed nutrient mix from the reservoir add .5 ml of Algen Extract to it and feed 3.5 oz. gently to the top of each hugo. This is the same volume as a single water on cycle during the day and it bypasses the drip emitters. I have in fact already done this on last Tuesday. Last Tuesday was the first irrigation day since transplant. It is my understanding that those first 9-10 days without fertigating the Hugos that started out saturated at transplant and dry down to about 30% water content before the first watering encourages the young plant to establish a good working root system. The tops of the plants seem to be slowed a little by this method in the first two weeks. The payoff is obvious by the end of the third week when the plants really gain momentum. Sundays will be my regular weekly update day. Look for pictures then.