dissolved oygen

[randy baker]

what is the best way to know how much oygen is in my pond are these meters they advertise any good? the pond is 1000 gals. with 3 oxygen stones and a waterfall . the water all tests great but i cant test for oxygen levels there are 22 goldfish and lots of plants

 

[Mmathis]

There are test kits you can buy. This is what I use.

 

[GBBUDD]

gold fish can live in a stagnate body of water i would not worry about it a waterfall by its self should do the job