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Forum > The Goldfish Topics > Goldfish Tanks > Water problems? Questions about water quality?
JessicaandMarshall
I bought the pH test kit today, my tank water is 7.5 is it ok to put Coral in, or should I just skip that?

Thank you
Jessica
pm94
I wouldn't mess with your ph. 7.5 is just fine for goldies. Just
make sure it doesn't go up or down to much.
jetman73
You need too check what your KH is before you add coral too the tank. Just because your ph is 7.5 does not mean it will stay there. KH, also known as carbonate hardness and alkalinity is what is responsible for keeping your ph stable. If you have high levels( above 100 ppm) than just regular water changes will keep it where it needs too be.
I would think if you have a naturaly high kH and add coral too the tank you should expect your ph too rise too somewhere in the 8.3-8.4 range in the near future.
JessicaandMarshall
Thank you everyone!

My pH is actually 8, I read the saltwater number DOH. I think I'm going to skip the coral for now.....

Jessica
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