Thanks for all the advice on here, thought you might like to see the little fellas tucking into a squid lunch, don't worry I did not let them eat too much.
First time I tried them on Squid and I think they like it
I like to suspend their food in the tank like this.
They are very happy in the new 200L tank and next week we start to take the tank brackish.
My Puffers: Puffers I have kept: T lineatus T miurus A modestus T biocellatus C valentini C coranata C papuan C lorteti DPs suvattii burrfish T niphobles