10-23-2008, 05:43 PM
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if your fish are fine, leave it alone. they have adapted. your toxins are in check so no danger there. now as the above post stated your parameters can vary and just because part A is one thing, don't assume part B or C is also something else. My tank is a prime example. My tap is 7.6, kh is 4-5 and my gh is off the charts. Last time i attempted it was over 50 degrees using the AP water testing kit. But if you want to lower your ph your choices are slim and already mentioned. Using straight RO isn't good. though If you use straight RO its dead water until you add back in your trace element. Or you can use a mixed ratio of RO and tap. You can also collect rain water, filter it for about 1-2 weeks with active carbon and aerate the water. You can use non-chemical peat. Peat does change your water and i agree it does look kinda cool and more natural. peat can be unpredictable though. its a trial and era thing to get it right. high ph in a planted tank can aslo be lowerd by co2 as mention above. a pressurized co2 kit is best and most reliable. to do this, you need 20-30ppm of co2 to lower your ph .6-1.0. co2 can lower it quite quickly so start out slow considering you have fish already in your tank that have adapted to the 7.8.
Last edited by flight50; 10-23-2008 at 05:46 PM..