Has anyone here been running Orca in DWC? I’m interested to find out how it compares to hydroguard.
Judging by a glance at advertised numbers alone, it looks like Orca is only about 1/3rd less concentrated (24,960 CFU/mL vs 40,000 CFU/mL), though upon further calculation (when each is used as recommended) it equates to being less than 1/6th the concentration of hydroguard.
The numbers I’m talking about are:
- 1mL orca vs 4mL hydroguard (recommended preventative doses for 2 gallon reservoir)
- orca contains 24,960 CFU/mL for a total of 24,960 CFU
- hydroguard contains at least 40,000 CFU/mL for a total of at least 160,000 CFU
I currently use hydroguard + great white (+ root rescue) but have had my eye on Orca for months, in a few more res changes it will be time to pick up some more hydroguard but I have been considering switching to Orca instead of the first two.
My main concern is in the amount of reduction (of that strain of bacteria) that’d be entailing. I often use 12mL of hydroguard just to use it up faster, but perhaps that’s been extreme and the Orca would suffice.