| I fail to see what the two have to do with one another…
I have several Baki showers with Bacteria House media running in them. I have systems on both hard and soft water. Other than one Kohaku out of about 60 fish I have not had problems with Shimis. The koi that has gotten shimis is a koi that had a small sumi stripe about 1/2 inch long in the tail fin when I bought him and I think is genetically inclined to get sumi spots.
I know hard water can play a part in shimis but I do not see were the Bacteria House media plays a part. The media is not supposed to chemically react with the hardness of your water. The process that I can see influencing the water hardness is the normal use of carbonate hardness in the filtration process. But that should not effect your over all hardness if you are doing the water changes that are required with a Baki Shower.
John |