PH/KH too high? - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 4 Old 07-14-2008, 09:06 PM Thread Starter
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PH/KH too high?

I just re-tested my tank and my PH is 7.8. My GH is at 120 ppm while my KH is close to 300. I understand (basically) the relationship between the 3. I understand that I have water on the "soft"er side. My concern is that my PH may be a little too high for the fish I currently have (neon tetras, cory's, danio's, guppies, raphael catfish). Ammonia/nitrite/nitrate levels are fine.
Should any of these numbers alarm me? If so, what is the best way to reduce them? I understand there are chemicals to artificially lower PH but, as with just about everything, I'm sure a more natural solution exists and has less chance of harming the eco-system.
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post #2 of 4 Old 07-14-2008, 09:09 PM Thread Starter
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I just tested my tap water and it is dead on 7.0 ph. What could be causing my ph to be so significantly higher in my tank?
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post #3 of 4 Old 07-15-2008, 08:15 AM
Kim
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Do you have coral of any kind in your tank, or any rocks? It also is possible that you have odd water like I do. Mine comes out of the tap at 6.4 and rises to 7.6 in about 24 hours. Try putting some of your water out to sit, and testing it the next day. If I had known this it would have saved myself a lot of time testing every single thing in my tank to find the culprit of the high pH ! Good luck.
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post #4 of 4 Old 07-15-2008, 08:44 AM Thread Starter
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I'll check it out, thanks. I do have a few rocks (freshwater so no coral) but I am also currently running a pretty inconsistent supply of co2 into the tank. If I were to invest in a more reliable and consistent co2 injection system would that possibly lower the PH?
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