Yes it is. You are?
Whoops! Nitrites are still zero but had an ammonia spike to 2 mg/l overnight! As un-ionized ammonia (NH3) that comes to 0.050 mg.l! For salmonids that should stay under 0.020 mg/l/ I think the nitrosomonas has to adapt to my start up of adding feed to the system to the swim up fry, and I need to realize it much slower at the 12 to 13 C. vs. my other systems that are about 25 C.
I clean any wasted feed off the bottom of the tank now ASAP (feed goes through the screen of the basket) and I think I was getting carried away on the feeding although swim up fry need to be fed often.
Getting ready to do another water change. Wish I knew how long it takes for the nitrogen gas to evacuate from a 55 gallon drum that was filled with well water. I don't want to take the change of causing gas bubble trauma.
. I have a different name on there though its Lakeofclouds.