Quote Originally Posted by foaf
Oh, and they do tell whats in it now, and its nothing like peroxide. It uses "chitosan" which is a polysaccharide derivative that is made from chitin, or the protein that comprises crustacean shells and insect shells. It is bacteriostatic and as mentioned above it will kill of good and bad bacteria.

My opinion is that if you have needed florashield before, then you should just start each grow with an innoculation of beneficial bacteria, I use Botanicaire's Hydroguard, and you will likely get better protection from root rot and from buildup on your plastic parts.

For cleaning between runs, nothing beats bleach, plus it evaporates when you are through leaving no risidual chemicals except for a small amount of sodium chloride.
florakleen...blows bleach away as a cleanup solution..no comparison, No salt!
latewood Reviewed by latewood on . ATTENTION GH's "FloraShield" users..... If you use Florashield by GH as prescribed in their charts like their "phase feeding cart" or "weekly feeding chart", it says to use 37.5 ml. per U.S. gallon of reservoir at every reservoir change. What they don't tell ya' is what the stuff does exactly, and what exactly it contains. THey don't tell ya' that 37.5 ml./gal is NOT for every gallon of every resevoir change, and that it is only intended for specific needs like a root rot problem, or bacterial infection. They make it look Rating: 5