We have a 1,000 litre tank, fish only with live rock which has been established over the last 7 yrs. We got a Porcupine Puffer 6 months ago who has done well and grown a lot…(from about 3 to 4 inches in length) he seemed happy, like a little puppy, and has been fed mainly on raw prawns…we have offered squid, mussels (in and out of the shell), and live food (small shrimps) and small snails, but he only ever eats the prawns. Over the last day he’s gone really quiet and is sitting on the bottom of the tank ( very out of character) and hasn’t eaten for 3 days…I’m so worried about him. Everyone else in the tank is fine, there aren’t issues with the water or anything…and everything seems fine…don’t know what to do?
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