Green Spotted Or Avocado Puffer?

So I have a 40 gallon tank set up, just about finished cycling. I really want to get a puffer, always though they were cool fish.
I was thinking of getting a green spotted puffer, when I went into my lfs yesterday the guy there showed me some avocado puffers they just got in, he said they had way better personalities than the gsp. Now I'm not sure which type I want to get.
Anyone with experience keeping puffers able to weigh in on which species they prefer?

 

It would be better to avoid puffers unless you have decent aquatic experience. Here is an article on the green spotted. Brackish notes included
Green Spotted Puffer Fish

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If it's the species I'm thinking of, avocado puffers are a little more stream lined than your typical chunky/round puffer. While I have no experience with this species, they are supposedly pretty quick and pretty mean. They don't get as big as a GSP. I've also never heard of them needing brackish, but I could be wrong. GSPs do however, need high-end brackish/marine conditions to thrive. The salt aspect isn't that much more work.

Puffers are tricky because their personalities vary so much, even within the same species. But just because you haven't had a species, don't let that deter you away from trying them. Just do your research and be prepared, and even then you'll still learn a lot along the way. Once you figure out their aggression and feeding, they are pretty hardy fish and only require a little more TLC then your typical community fish.

You COULD do a low-end brackish tank and have a couple Figure 8's. They are typically a nicer puffer species. Also one of the best looking species, IMO. Plus you MIGHT be able to keep a couple tank mates.

 

Thanks, the work isn't a problem I have a few tanks anyway.
It would be a single fish only tank so aggresion isn't really a problem. I already have a saltwater tank so that isn't a problem either, just want a cool puffer.
I haven't seen figure 8's at my lfs before maybe I'll look into them I like green spotted puffers because I think they are cute, but if avocados have more personality maybe I'll go with them

 

You could always go with a pea puffer tank or a amazon puffer tank. Both are true freshwater puffers and are really cool

 

If it was between your two original species for a single specimen tank, my personal vote is for a GSP. If you've never had puffers before, they are awesome fish! Even the lurking species that aren't as active.

The only "problem" with puffers is there are a lot of small species (anthing from around 1-6"), and a few x-large species (around 12"+), which leaves a big gap in between. So you get something under 40 for instance, or over 125. Let's just pray that one day someone may breed Mbus into a smaller version of themselves.