Bests & Worsts Reviews from Amazon

I am a horticulturist and even though I swear by Superthrive and have been using it for over 25 years, The company that has the amazon seller name of Star Hydro waters down there Superthrive and then resells it. I bought a quart for $50.00 and the solution is supposed to be a semi-dark shade of brown. The bottle I received was a very light brown and clearly had been watered down. Stay away from this untrustworthy seller!