Join Date: Feb 2012
Location: South east asia
I never said he can't use it... I use Seiryu rocks in my tanks as well; kH rises quite a bit with higher level of CO2, but regular water changes negate this effect. Others have complained that certain seiryu type rocks raise kH above 10 and becomes troublesome for sensitive plants, so one should plan ahead, especially since hardscapes can be very troublesome to change once plants/slopes etc are set.
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Last edited by Xiaozhuang; 08-08-2013 at 02:49 PM.
Reason: Grammar errors