| I did tour a "heavily stocked" koi pond of a "backyard koi dealer" a few weeks ago that might be a better candidate for your test purposes. This pond had several homemade bead filters as the biofilters, there was NO aeration in any of the biofilters, and the dissolved oxygen was low, and the ORP reading was low, despite ideal levels for ammonia, nitrite, nitrate. The only aeration was a diffuser over the bottom drain to an air pump. I encouraged the individual to install a large trickle tower to help with the low Dissolved Oxygen and low ORP (150 at 65F water temperature) issues. The koi were obviously all healthy, good quality Japanese koi, at high stocking density. Like you indicate, I don't see why the device would be helpful to either of my koi ponds, so a different test site would probably be better. I will see whether I can stir up some further interest....something new and useful CAN be a good thing if properly understood.... |