my pH act weird

[Bubble]

Hello all,

I just test my water and here are the results:

ammonia= 0
nitrite= 0
nitrate=0

But my pH level had been up and down for the last 3 days. It drops to 6.6 now instead of 7.5. What happen?

 

[Cian McLiam]

Either your test kit is out of date or something is wrong in your tank.
Can you give more details such as water changing, stocking, are you using CO2 gas for plants,do you have dead or dying plants?

Ken

 

[Bubble]

Can you give more details such as water changing,
--> every 2 days

stocking,
--> Over stock. 80 gallons tank

are you using CO2 gas for plants,do you have dead or dying plants?
--> no