Planted Tank Enthusiast
Join Date: Feb 2008
Location: Mission Hills Ca.
PH high, KH-GH low/med. Need advice plz
For the past few days I have been doing RO/DI water changes every 3-4 days apart. Before I started the RO/DI WC my PH was 8.0, KH 8, GH 15. The WC have been 15%-20% and the last WC was this past Sunday (Easter).
My PH is now 7.8-8.0, KH 5, GH 7.... I'm not sure why my PH is still high since I dont have any lime stone or coral. I have 10 large/hugh piece of drift wood that turn my water into light tea (not to dark). Only thing I can think that might be buffering my water is a half bag of eco-complete I added 2 weeks ago and some silica sand thats mixed in my substrate that I could not fulling remove 4 years ago when I changed substrate. I don't think it's more then a pound of silica.
Now that my GH and KH are lower, I have noticed that my CRS are showing more of the white and I even have a CBS that is berried. My RCS are cool with the water conditions cause they have no problem breeding. I'm not sure if I should continue doing pure RO/DI WC cause I don't want to drop my GH/KH any lower and starve my plants since I don't use any ferts. Also my shrimps might end up having bad molts if my GH/KH is to low. At least thats what I have read why shrimps might have bad molts.
Perhaps I should start doing 50/50 RO/tap WC and not worry to much about the PH since the GH and KH are at nice levels.
Messing with water parameters is a pain in the rear
Last edited by Scipio; 03-28-2008 at 04:23 PM.