I have had my porcupine puffer since he was tiny. It's been about 10 months and I haven't had any problems with ich or with him hiding away. Some days, he will spend a lot of time in the live rock, but whenever I get home, he comes out to see what's going on. He also like to chase my cat's paw when it plays with the glass. I'm really new to the saltwater fish community and the porcupine puffer was a great way to start. Let me know how it goes if you end up getting one!