Hello, I'm facing a problem and I can not find a solution. I use osmosis water in aquariums for 3 years until now I did not have this problem raise me ph, when I change the water I have 5.7 after 1 day I have 7 , 2-7.4, the substrate is benibachi, sirakura, akadama, help, some have 1luna, other 6luni, 1an, I wrinkled aquarium substrate, I made a 90% water change.
Please help
- cojocaru razvan
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