[afo1201]

Guys, how can I determine if there is too much waste in the aquarium? high ammonia levels I assume? is this correct? how else? My tank is pretty well stocked now and want to stay on top of this.

Please let me know and thanks in advance!

 

[punman]

I am no chemist, but would it not be high nitrate levels that we want to be testing for? Isn't that why we do frequent water changes and service the filters?
Once a tank is established (cycled) ammonia should be zero.

 

[DJRansome]

Correct. Once nitrates get to be 20ppm time to change water and/or clean filters, substrate, décor, etc.