Hi all ,

I have 29 gallons tank with 6 goldfish.
Have plants in the tanks.

My pH is between 6 to 7 , KH is 10 .

The questions is :

1) how to increased KH ? The higher the KH , better for goldfish ?
2) use SeaChem Neutral to increased ph and remove ammonia ? Is the
products good?
3) how to remove nitrate ? Any products to use?
4) What is GH ? What GH suitable for goldfish

thanks