Mossimus wrote:

The tank is approximately 15x8x7 inches . . .

"Geezer From Freezer" wrote in message
...
You need an ammonia,nitrite,nitrate and PH tester.

Also can you give the measurements of the tank (preferably in inches)
and we will tell you how much your tank holds.

ok you have a tank size of about 3.6us Gallons - you are massively overstocked.
You
shouldn't even stock 1 goldfish, let alone 2. Rule of thumb is 10us gallons per
goldfish. You should address this. I imagine your fish aren't happy and have
been
subjected to ammonia/nitrite/nitrate poisoning as well as oxygen starvation.

You should consider correcting this.