Yep that's ok for one just not two. But I will say that each puffer has there own personality. I have 3 DP 2 females and 1 male and they are in a community tank. Everyone is great and they never pick on anyone. Make sure you have plenty of plants/rocks and driftwood so they don't get bored, mine love playing in my overgrown hornwort but they did glass surf for the first few days, I was worried about them but they all stopped a couple days later
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