Thanks for the support everyone, I am taking this pretty hard, if I didn't have more megalopa in the other jars I'd feel like giving up right now.
NAT I used this stuff;
http://www.bigalspets.ca/betta-formula- ... -50-g.html
And I probably used too much, I could tell the water was "off" when I entered the room and knew something had gone horribly wrong.
In a way it's lucky I separated them into that extra jar or I may have put that food into all the jars. I know better now. I may still try the 4rth jar for megalopa but I'm going to just do a few next time around.
I probably have 5-6 more megalopa in the 3 jars still going, but I'm scared to do anything to them.
Should I still try to get a jar for just megalopa? It's such a different diet then the zoea that my water gets dirty really quick. And the water is going so hard they can't even try on the shells at the bottom and the zoea bang into the shells. Ugh!!! I think I need bigger jars!