Exactly what Straightjacketstar said. They need brackish water and, I believe, can get right up to full marine (don't quote me on that thought). The green spotted puffers are also brackish, however both fish are awesome. I miss mine
. Another thing to note is that both fish get pretty large.
If you had either a very large or very tall tank, it might be possible to keep some pea puffers with small, very mellow Tangs. Some low-key julis or calvus or something might work, but the calvus might get big and try to eat them.
If you had either a very large or very tall tank, it might be possible to keep some pea puffers with small, very mellow Tangs. Some low-key julis or calvus or something might work, but the calvus might get big and try to eat them.