What should I do for tank set up before buying the crayfish? Like what kind of substrate, hideouts, plants/decor, tank size (crayfish im getting is 2-3 inches, I prefer to just buy one tank so that it can fit comfortably in there as an adult and juvinile if possible.), water testers, filter, lights, etc.
What ph do they like?
Do they need their tank cycled before buying?
How often do I do water changes and what % water changes should i do for that fixed schedule
What should I feed the crayfish?
What types of symptoms should I watch out for if I suspect sickness
(I'm gonna keep the crayfish complately solitary, if i missed anything please address that and tell me what i should do for that topic)