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406 Posts
*** been cycling my tank w/ ammonia and I only have pool filter sand and holey rock in it. The PH has always been 8.4. I check the water daily. My tap water straight out of the faucet was 8.2-8.4 when I filled up my tank back on Dec. 27, '10.
Fast forward to tonight I added 5 more large holey rocks to my tank so I redid all the rock work. I took out 5 gallons of water to keep the little rocks that were already in my tank in and when I was done I filled the tank back up w/ 5 gallons of water from my faucet. I added less than 1ml of Prime and 3mls of ammonia since it was at 0 for 24hrs. now.
I let the tank chill for about 2 hours and I took some water readings. The ammonia was less than 1ppm, the nitrites were 5ppm+, nitrates were 5ppm but my PH was 7.6? I though it was a fluke so I checked it again and it was 7.6. I though maybe it was the new rocks but then I checked my faucet water and it was 7.4? I doubled checked it and it was 7.4?
What would cause a large drop in PH? I only added 5 gallons of water with a PH of 7.4 so I dont see how that wouldve lowered my tanks PH which was at 8.4.
Fast forward to tonight I added 5 more large holey rocks to my tank so I redid all the rock work. I took out 5 gallons of water to keep the little rocks that were already in my tank in and when I was done I filled the tank back up w/ 5 gallons of water from my faucet. I added less than 1ml of Prime and 3mls of ammonia since it was at 0 for 24hrs. now.
I let the tank chill for about 2 hours and I took some water readings. The ammonia was less than 1ppm, the nitrites were 5ppm+, nitrates were 5ppm but my PH was 7.6? I though it was a fluke so I checked it again and it was 7.6. I though maybe it was the new rocks but then I checked my faucet water and it was 7.4? I doubled checked it and it was 7.4?
What would cause a large drop in PH? I only added 5 gallons of water with a PH of 7.4 so I dont see how that wouldve lowered my tanks PH which was at 8.4.