They don't seem to be getting too much bigger, but i've only managed to catch one cycle of molting, when they have obviously been growing enough to have several moltings so who knows. My minnows swim much faster then them though, especially swimming forward, so I'm not too worried about them being caught, that would have to be one very lucky shrimp and they're more likely to be taken for a ride then anything else XD
i will keep an eye on it though. the fish guys at my local pet store were surprised when i described and showed them how big they were getting, apparently most people in town kill them before they get to any sort of adult size.
Djura: Red Crowntail
Logarius: Blue-black/Orange Crowntail
School of Mensis: School of White Cloud Mountain Minnows
Shadows of Yharnam: Oto Catfish
The Church: Ghost Shrimp