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water testing...... GH still not high enough?
after several days of 'putzing' around with water testing (only really
stared this because koizyme said it needs alkaline water) I still have a low GH. here is what I did: (3800 gallon pond) water temps . from thermometer, I have no idea is working correctly said 65 degrees also the1st ph reading was about 8pm thursday, then I took one at 6 am fri morning, they were pretty close.(so I think the ph is stable, didn't look like it crashes) thurs: 1st reading PH 7.5 ammonia 0 nitrite .3 - .5 nitrate 5-10 GH 40-60 KH 60 added 2 lbs of baking soda & 4 cups of dolomitic lime + salt no change in readings except ph went to 8.0 added 4 more cups of dolomitic lime ph 8.0 salt .11% O2 10 mg/l ammonia 0 gh 60 KH 90 nitrite . 0.3 nitrate ~ 8 the ONLY thing that changed , really was the KH went up. I read that the lime will not dissolve in water with over 7.5 ph ,, (correct??) I do see a lot of white laying around on bottom of pond. sooooooooooo do I just leave this as is? I figure if the stuff isn't dissolving , more won't help. or is there something else to bring up the GH? or should I bother? ( I read you can also use qypsum, but there is the danger of shooting the ph off the scales........ or should I make one of those plaster of paris cupcakes?) |
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