especially something like salmon too !
ive got a fairly big age gap between my kids so one was weaned at 4 months (as per guidelines then) mainly purees until 7 months, then younger one at 6 months as guidelines had changed. Im pretty sure with both of them fish (especially ones which could cause allergic reaction like salmon) weren't recommended until 6 months and then to start with safer options like cod, haddock as theyre lower risk.
i wonder how she will get on with it..it can be quite time consuming at first and if she is doing just baby led which seems to be the way now Hope shes prepared for the mess !