Finally I got a bristlenose pleco spawn

[DoubleDutch]

But they still have ther egg sack do you think I should feed them now or after it’s gone

After it's gone

 

[ghyti]

It will take 5 days to use up the egg sac. Feed them after that. I rubber band a piece of zucchini to a rock and drop it in, replace every day. Keep food available for them all the time. Eat is what they do all day.