stylaster
I increased carbon dosing a bit, & added a little reactor with some bio pellets to the nps tank. I had a zeo reactor in place already, so far so good. Nitrate still less than 1, & phosphate went up to .o4 from .02 haven't check it since increasing carbon. If it doesn't go down I'll put some more bio pellets in. I was concerned about all that extra food in the system.
AquaticEngineer
Yes we have PMed on NR & when I checked your other posts I found your link to thread here & joined up. I'm looking forward to being able to find some more people with cold water tanks. I have seen references to Steve before & I'm sure before its all said & dun I will be taking with him.
rgrvrain
Yes that riser is for main closed loop, there is another one in the overflow area that comes back in the tank under the rocks.