Why is my ph so high? - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 07-01-2019, 12:45 AM Thread Starter
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Why is my ph so high?

So I’m currently in the middle of cycling a new 75 gallon so that I can temporarily house the fish from my 29 gallon that I plan on rescaping soon. Right now I have 2 aquaclear 50s on there with sponges and as much matrix I could fit( filters are temporary until I get my canister filter that’s running the 29) My current parameters are,

PH- 8.0
KH - 4
GH - 5
Ammonia- 5 ppm ( currently cycling with pure ammonia)
Nitrites - somewhere between 2-5 ppm ( hard to tell on the api test kit , just started seeing nitrites come up 2 days ago)
Nitrate - 10 ppm( just registered on the test today for first time)

Currently all I have in the tank is one 20 lb bag of eco complete, 4 large pieces of spider wood, about 15 pounds of seiryu stone and some plant clipping from my 29 gallon ( hygrophila and frogbit)

Why is my P.H so high? I know that seiryu stone could possibly raise it but wouldn’t it also raise my KH and GH? My tap water has a
ph of 7.4
Kh 4
Gh 5

Any help would really be appreciated.
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post #2 of 3 (permalink) Old 07-01-2019, 12:54 AM
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My best guess is the seiryu stone. I bought it as inert and it jacked my pH and KH in both tanks it was added to. Not sure, but that's my best guess. Why your KH is stable, I'm not positive.

Nothing good happens fast in an ecosystem.
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post #3 of 3 (permalink) Old 07-01-2019, 02:43 AM
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Brand new tanks are always a bit off. Once natural acids build up from decomposition it will drop a bit.

Did you let tap throughly degas before taking reading?

Watch ammonia your getting on edge of to high. Nitrites for sure keep 4ppm or under. When cycle is closer to completion you may see PH move down a bit.

Right about now is when Id start adding a bit of fish food, pretend your feeding a pair of guppies, its a more of slow release of phosphate and nitrate. Even add 2-3 almond leaves for natural acids they release.

Only after cycles complete and 1st fish have been in there a week would stones become suspect because at this time everything is in flux.
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