Pair of Spotted puffers

I don't know what they require nor what they will devour, but usually puffers are messy eaters and may be a big contributor to water quality issues.
 
Had a spotted in my first setup, it nipped at everything especially when something new was introduced. Took small chunks out of snails then just let them die, finally removed it after a few months. YMMV

Cheers,
 
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