help puffers not eating

[minigammo]

please help they havent eaten since sunday
my water tests are fine and they are in brackish water

 

[tyspot1000]

What type of food are you feeding? How long have you had the tank and how long have the puffers been with you?

 

[minigammo]

tried prawns, blood worm live n frozen erm they had some snails on saturday. musssels
the tanks been up n running for a month and had the fish since saturday...
the two big ones r eating its the two little ones that are worrying me