I will start making my own phytoplankton since it's getting too expensive to keep purchasing it. Now the question, I've seen people making it and adding a couple of miligrams of miricle grow to the concoction. Other add another type of grow Substance to it. I'd like to know if anyone here makes it and if they ever heard of using miracle grow since that s the lowest price and most easily available source for it. I'm using the plastic soda bottles with holes drilled in to the cap with air line tubing to the bottom. Lighting it for 18 hrs and darkness for 6 as recommended. Chime in all you phyto people.



