High Ph After Water Change.

[snailhoc]

Changed 20% of water of water last night last night but forgot to treat 10% of changed water with some thing to to neutralise the chlorine and this morning the ph has gone from 6.5 to 8.4. Theres guppys, neon tetras, black mollys, kissing gouramis and clown loaches in the tank. Should I use some thing to lower the ph and if so at what rate?

 

[Tolak]

If you forgot just add some dechlorinator to the tank.

What's th pH & hardness of your tap water, and hardness of your tank? If you have any driftwood or bogwood in the tank, or are running peat this will lower the pH safely. Any type of limestone, whether it be rocks or substrate, will increase pH. Forgetting to add dechlor to 10% of your new water shouldn't affect pH at all.

Adding chemicals to adjust tap water pH is a loosing battle in all but the softest water. Hardness stabilizes pH, you may lower it temporarily but it will rebound back to its original value. This is bad for fish.

 

[snailhoc]

If you forgot just add some dechlorinator to the tank.

What's th pH & hardness of your tap water, and hardness of your tank? If you have any driftwood or bogwood in the tank, or are running peat this will lower the pH safely. Any type of limestone, whether it be rocks or substrate, will increase pH. Forgetting to add dechlor to 10% of your new water shouldn't affect pH at all.

Adding chemicals to adjust tap water pH is a loosing battle in all but the softest water. Hardness stabilizes pH, you may lower it temporarily but it will rebound back to its original value. This is bad for fish.

used ph lower and it came down to 7.5. have very soft water so hoping it should stablise but did lose two guppys. thanks for advise.