[fishfry]

Hi all,

I have tried searching for some info. on this but most info. seems to deal with pH not KH. Perhaps this is a stupid question but every time I test my water it seems that my KH goes down, and I don't quite understand it. What lowers your KH? I use RO water with a KH of about 0.6, then I use Kent Botanica KH+ to raise the KH to 2. My KH used to remain constant at whatever I raised it to, but recently it just goes down over a couple days time. I would like to keep my KH at no less than 2 and no more than 3.

Thanks,
Ethan

 

[fishfry]

So the carbonic acid that makes up the KH of the water gets taken up by the plants, and that is what lowers my KH? Am I understanding right? That is my main question...what in my tank is lowering the KH. I am happy with my current method of raising my KH with the "KH+" liquid, I just didn't know why it was going down, for some reason I thought the KH never changed.

Thanks!

 

[fishfry]

Hi CS,

I am using Florabase...that is a very interesting point you raise, maybe that is what is going on... I have used Flourite in the past and never had the KH act like this. For the last couple of weeks since I have been paying closer attention to the KH my plants have started doing great! Before the KH was too low and there was hardly any co2 in the water.

-Ethan

 

[fishfry]

thanks cS!