I'm here trying to learn as much as I can from puffers. My parents gave me an acuarium as a surprise gift, I'm feeling really bad because the acuarium was not cicled, it is brand new. It comes with a puffer, the seller said it was a Tetraodon Nigroviridis, but it is now on fresh water, I'm really scared because if it is a Nigroviridis he needs Brackish water.
Also I'm concerned because I dont know how to feed him, i have some snails, the vendor said the was Marisa Cornuarietis but i think they are Gyraulus Acronicus, but what else can I feed him? Its ok to buy frozen shrimps? I'm trying to breed snails but I dont know if I can do it well.
Ok, so sorry for my bad english i hope you can understand me. Thanks for advance. Here are some pics from the puffer and the snail.
Salutes

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