DWARF PUFFER HELP?

Yaz

New Fish
Mar 27, 2017
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0
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#1
have 4 dwarf puffers and the one is very skinny and looks like it has a curved spine! The other three are completely fine and eat well. The skinny one occasionally eats but don't notice it as much as the others. Fed on bloodworm and snails. I have had them for a week or so now. Do you think it's parasites? Shall I put him in his own tank to feed him up ? Sorry for the mess in the pictures taken just after feeding time with messy blood worm!
 

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