kH issues (TOO High)
Just thought I'd post this to see what other people have to say. I've been trying to read and figure out what caused this.
A few of my fish died this past week so I did a water test to see what's up. My kH was 14+ and my pH was at 6.4. (My test kit only works until 12)
Usually my kH is about 8-10.
So I did a 7 gallon water change (21 gallons tank size) on Sat and retested my kH. It went down to 12.
I turned off my CO2 and autodoser as an experiment.
The next morning I checked my kH again and it was at 14!!!
So I did a 10 gallon change.
This morning I checked it, my kH is now 9.
The tap water kH is 7. I think my pH was at like 7.0.
I starting autodosing in the end of December because I went on vacation. When I came back the CO2 was low so I turned it up for the last 3 weeks.
My CO2 is from a welding supply place. Possible contaminants?
In case anyones wondering I dose
1/4 tsp K three times/wk
Flourish half cap three times/wk
1/32 tsp N once/wk
in 3.5 cups dechlor water
5 gallon water change once a week
I usually only fill one weeks of ferts in my container for autodoser. On Sundays I clean it out and make a new batch. But last week I didn't clean out the remains in the container.
Last edited by mecgeorgeneo; 02-06-2007 at 02:57 AM.