10-06-2009, 04:16 PM
Join Date: Feb 2008
iTrader Positive Rating: 100%
| | Re: Mini-M CRS tank
Originally Posted by Harry Muscle
That's Ohko Stone (also called Dragon Stone) that you've used in the pictures on the first page, right? Did you find it affected your water parameters at all?
Yes I think that is it. I believe I read somewhere that it might increase the hardness of the water. I did not test it rigorously, just a quick read with the TDS meter - not much increase. Maybe that is why they recommend it being used with Amazonia.
I must preface by telling you I boiled to stones for a couple hours in a large pot outside. The water got a little cloudy after the boiling but the stones stayed intact.