Any suggestions

[oscarslr]

when do i know when my rock is done cooking???????

 

[meco65]

When all the test are good.

 

[hmello@bermexin]

Ammonia zero, and nitrite zero.

 

[Travis L. Stevens]

Nitrate should also be zero. If it has been in there long enough without an outward carbon source, the bacteria should have used up all the available Nitrate.