The Planted Tank Forum - View Single Post - Tiger Tank...official start (now with shrimp)
View Single Post
post #24 of (permalink) Old 01-29-2012, 06:48 PM
Planted Tank Guru
diwu13's Avatar
Join Date: Sep 2011
Location: Willimantic, CT
Posts: 6,169
Originally Posted by GDP View Post
Sorry to sorta thread jack but Im curious, does KH matter at all in a tank with active soil? Or because the soil buffers you dont need KH and the soil keeps the PH from swinging?
Yea that's completely correct. kH helps buffer the pH and keep it stable, but if you have active substrate it is doing the buffering so keeping the kH around zero you minimize the "work" the substrate has to put in to lower the pH.

Originally Posted by Nubster View Post
The numbers you quoted are from the water out of the RO/DI filter. My tap water is:

pH 7.6
KH 5 (drops to color change, API test kit)
GH 6 (drops to color change, API test kit)
TDS 117
Yea I meant are you sure the kH and gH values from your RO/DI filter are correct? Or is your TDS measurement in degrees? Generally, if you're using a TDS meter it will measure in ppm, whereas the kH and gH tests are in degrees. In which case your TDS should at least be ~38.

Fish Shrimp tanks are like cups of coffee, one is never enough.

ヽ( ゚ヮ゚)ノ.・゚*。・+☆ Twin 10G Shrimp Tanks & 20L Grow Out Tank
diwu13 is offline  
For the best viewing experience please update your browser to Google Chrome