Yeah, it was just an idea. I do have an IV setup from when my cat was sick (long sad story). So, that is probably the best bet.. But, I was thinking this would be cooler because you wouldn't need the kalk
mixture hung above the tank and looking all tacky. The valve would meter the kalk
. If you had it BARELY open, it wouldn't overdose.. Maybe just fill a clear tube and watch it barely move. That would be effective. As long as nobody moved the valve.. all would be good.
I would always err on the side of too little rather than too much anyways.