They are so chunky already, you're gonna have to go easy on the massivore.
For some reason I thought you got a sizeable group a bit back, these guys look great though. Pike bug hitting hard for you, can't say I'm not excited.
I had them twice before and lost both batches after using mysis shrimps as main diet. Maybe it's not the cause, but I'm not doing that again lol
Very sorry to hear. Looks like you'll be able to rule out starting health this go about at least. I've had a lot of missteps in the hobby and hearing a veteran isn't having the easiest go of it makes me feel a bit better. Between these and the multis I'm hoping you have a great deal of success, these are my two favorite pike species.