I see mine puff often aswell, considering my tank is in a place where I don't view as much as my other tanks (soon to change). Interesting comment about puffing from their reflective, I wonder what happens when you put a mirror on the side if their tank.
From what I've seen these guys love to ambush their prey. The only live food I feed mine were 2 barbs that where bothering my silver dollars in an other tank. The puffer waited for the fish to move above him, then attacked the barb viciously. Currently I'm feeding mine shrimp (head off and shell on), tilapia, and I'll occasionally stuff the food with Hikari floating sticks . I let him eat as much as he wants per feeding and feed him on average every 3 days. It's crazy how you can hear the puffer chew it's food. I want to add a few more foods to its diet, I have been looking into self cloning crayfish. If I can find a local seller I might try this in a 10 gallon. What do you guys feed your hairy puffers?
Most of the time my puffer is not that very active (curious to see what a power head will do), expecially after a feeding. If he's hungry and I come to the room he will come to the front of the tank (perfect time to take pictures). I bought a clay pot for him to chill in and he wouldn't use it at first. After I put a small plant covering most of the entrance he started using it much more.
I love my puffer, if you're looking for a single mini monster and have a spare 29g tank then this is an excellent choice.
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