You make them sound bigger then they probably are. 3-4 week old cherry's? If you had to guess, would you say the crayfish are about half an inch?
Actually, my cherry shrimp don't grow very fast... either that, or I have tooooo many babies being born, so I don't know what they look like after 3-4 weeks... The crays are prolly 1/4 inch, some close the 3/8 inch. Only way I could see the cherries after 2 weeks was to line them up on the filter, as they were really tiny.
And this morning, I'm having a terrible time finding the shrimp food... Wifey fed them while I was gone, but now I need to feed them and I can't find it :frown2: