i have a 20 long with 13 flavus fry in it that i cant afford to lose any of, would it be okay if i put my holding yellow lab in with the flavus fry she is just about 2 inches ii was wondering if she would eat the fry once she spit?
It depends. I had two yellow labs in my fry tank at once. One started eating fry but only after she'd been in there for a week after she spit; I was trying to fatten her back up. She was pretty ravenous, but I only lost 2 or 3 (of 20).
Once she spits, you should just remove her. But a day in there with fry would be OK. Fry know to run away. If you have java moss, you should put some in for the fry to hide in.