Bruce :

That RAS must be getting crowded. What about a temporary use of the other RAS and comparison. If you put one RAS in the light lower the water temp and then raise the water temp. you may get eggs. What about a bath in a 5 gal bucket ( with water treatment to kill bugs/fungus) for the FH then feed them to the hoard in the second RAS. They could probably use some fish oil lipids and might catch up in size. No risk to the first group.

Sounds like the YP RAS is working great. \:\) \:D