what could have raised my ph back up? I had it at 7.4-7.5 before and it dropped to about 7.2 or abit less. What could have caused the PH to raise back up by .2/.3? My tap water is originally 7-7.2. Why is my PH much higher?
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*Tank*
20Gal Long - ADA Amazonia II Substrate - Diy Co2 - Pagoda Rocks - coralife 2x18 T5 - aquaclear 50 - Rena 200 Air Pump - Azoo Sponge Filter 3.
*Plants / inverts*
CRS - CBS - RCS - Pygmy chain sword- moss ball.
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