[Hello to all]

Just one

[My fish are dying]

Thank you for responding. Fluval HOB with bio rings and purigen. I have been so rattled with all my fish dying I changed out the purigen again and forgot to rinse it. This all started this past Wed. I am in rural Oklahoma with a 3hr drive for fish or I order them. When I got home I had a fish. A older had died, I was not that concerned. I only added 2 fish and snails acclimating them slowly. I have never lost a new fish before. Thursday more dead fish. Partial water change. Saturday more dead fish. Another partial water change. Today I lost 8. I look just now and I have lost another barb. My ph is going up and is now 8.0. I have some api proper ph of 7.5 but it says not to use with plants. 
 

nitrate 25

nitrate 0

gh 150

kh 8

ph 8 which is up from 7.5

chlorine 0

 

[My fish are dying]

I have lost nearly all my fish in a five day period. I have made x2 water changes. All my water parameters  are good. I am using the aquarium coop dip sticks. This has never happened to me before. The only thing that is different in my tank is during the routine water change I removed a piece of driftwood. All was good for a bit then I began to loose fish. I lost 8 just this morning! My tank is heavily planted with many snails. Mystery, nitrite, and such. I have not lost any snails as of yet. My tank has cory’s, tetras, barbs, and a few danios. I would appreciate any advice. 

[Hello to all]

I am Ree from NW Oklahoma. I have been keeping fish for around 15 yrs. Just getting into planted tanks for around 7.