Probably unnecessary worry, but how long from when I see ribbons, to when the fry swim away? (If I need to pull branches and egg ribbons out.)

My worry is that I've got 1300 YP in this one acre pond. If they all spawn, I'll have WAY too many YP.. I've got some SMB, and YSB, to help control them. Can I have too many?

If I see 1000s of egg ribbons, should I just pull the branches out? Don't want more in the pond, than it can support.

12 yr old pond, 1 ac, 15' deep.
RES, YP, GS, FHM (no longer), HBG (decreasing), SMB, and HSB (only two have been seen in 5 yrs)
I think that's about all I should put in my little pond.
Otter attack in 2023.