they did not eat?

Okay, I feed Raven and Jack a pouch of wet food every morning (half for each of them) and 1/3 cup each dry cat food every evening (which I leave out). That is about exactly what they have been eating. Yesterday the did not hardly touch the dry food, I did not need to fill it last night. Am I feeding them too much (before now they have eaten ALMOST all of their dry food every day).
Jack is 9 weeks old and probably 1 1/2 to 2 pounds and Raven is 18 weeks and probably 4 pounds.

It doesnt seem to be too much... but keep an eye it likely is just a kitty not as hungry today... have they recently switched foods??

no they are eating the same stuff (nutro dry, meow mix or friskies wet pouches).
They finished their dry food today, it was like it lasted 2 days instead of the normal 1.
They are acting fine though.