I did a 30% water change on the 10G then I tested NO2 and pH after. NO2 is currently at 0.05ppm and ph is 7.8.
To address the size part, I decided to move the 2 NGTs back to the 60G. By the way I also did a 30% water change on the 60G and I didn't bother testing the water parameters. All my fishes in the 60G are stable and there is always good competition for food. Bigger ones get more and the smaller ones get less or until the big ones are done eating. By the way even the silvers datnoids are now fully stable after close to 2 months of being totally unstable. All of the fishes in the 60G are now on the market bought blue anchovy diet which runs about $1.77/lb. I thinks that is worth mentioning because that will definitely save me a lot of money in the long run.
Anyways back to the story. I moved the 2 NGTs to the 60G. After about half an hour, I checked on them and sure enough, they are slowly starting to color up. Although they are now coloring up all they do is hide wherever they can. At least that is a step in the right direction. Hopefully I will catch a glimpse of them eating which I highly doubt. These two NGTs are in the bottom of the ladder when it comes to size. The smallest in the tank, an indo datnoid is 2nd in command next to a managuense.
On a side note 1.5 inch Indo datnoid is all alone in the 10G. It will probably have a handful of companions when I get feeder gupppies sometime tomorrow.
So yeah, that's the story and I guess the NGTs will stay in the 10G from here on.