So far, I can count 4 that are left ....... no evidence of any others ..... so how big are they when they are 4 months old .... my largest is about 1 1/2 to 2 inches and I've only had them for about 5 weeks, they all were about the same size when I got them (about 3/4 ") - it's about time to separate her from the others, as she is twice the size of the others, and getting aggressive, ........ she's smart .... she works one of them into a corner, and then goes after it ..... they always get away, but I'm thinking the 10 gallon tank is shrinking for her and she is being territorial (?) I'll say one thing for these krebs, they sure like frozen shrimp ....... the P. Acutus just ignore them, but the 'krebs go after them like sugar candy If the dried tubifex would sink instead of float, I'd bet they would chow down on them too
Didn't I read somewheres that they shed their exoskeleton about 7 times before they get to full size?