How do i know when they're hungry?

[PUNISHER VETTE]

There's algae on the glass that i see a few shrimp eating but it seems like they can't take care of that algae.

They've eaten most of the other algae in the tank(couple dozen cherry shrimp). I gave them an algae wafer yesterday and they just flocked to it. Does that mean they're hungry or they just liked it better.

I don't want them to starve...But there aren't any fish in there that i would feed regular food they could pick up.

[TRDNiteLife]

I don't know, but I feed mine once a day. I feed shrimp pellets and algae wafers. Only enough that they can eat everything within a few hours.

[Mvjnz]

If they're not eating the algae they're not really hungry. They're just eating the wafer because it's a treat for them. Try not feeding for several day and see what happens. They're hardly gonna starve to death.

[Algenco]

I've never noticed shrimp not eating! They are pigs!

The can't do much with hard spot algae, and don't seem to like bba.