Keep multiple green spotted puffers in same tank?

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Jag586

Piranha
MFK Member
May 28, 2012
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Can you keep multiple GSP in same tank? I have a 120 gallon that I'd use, and I know they have to switched over to full salt as they mature, but I'm wondering will they end up killing each other? I used to have 6 of them in a 40 gallon like 12 years ago, I loved the lil guys till my tank broke. Plus I had no clue on keeping them back then or any fish for that matter. They were small though like 1-2 inches any way can they be their own community tank?
 
Maybe... Maybe not. It's a crap shoot. 40g would be minimum for one full grown. I had 3 in a 55 but ended up having to give 1 away due to fighting. 2 worked in a 55 for awhile then I bumped them up to a 75. They were pretty sociable when SMALL, but were some some savages when they matured. They racked up one hell of a tankmate death toll before I gave them to a buddy when I moved.

You can switch them to salt at a very young age with no ill effects. Raise your specific gravity .001 per week until you reach 1.008-1.010 then drip acclimate to a cycled salt tank over the course of a day.
 
1 full grown per 40g = 3-4 per 120. Very personable and one of my favorites
https://www.**************.com/foru...cus/an-introduction-to-green-spotted-puffers/
 
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Key word is decor. Lots of stuff to break lines of sight and keep them busy, as well as space to hide
 
Do they go full salt? I've read many different answers from brackish to full marine. I think it would be cool to not only watch them grow from freshwater babies to full marine, and watch the tank change too. I would probably start with dead live rock and sand, (dead live rock being rock that used to be live rock for a salt tank but is just rock now) and as I up the salt content see how the rest of the tank adapted and changes with micros once full salt add in a couple chunks of live rock to get some coralline algae maybe
 
Some people do full salt, or just mid brackish.
 
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Have you kept them? I was curious about the same thing.
I have not, my LFS keeps them brackish and I have seen varying opinions. I would say mid brackish is much easier to maintain and gives you the ability to keep gobies and such with em
 
Do they go full salt? I've read many different answers from brackish to full marine. I think it would be cool to not only watch them grow from freshwater babies to full marine, and watch the tank change too. I would probably start with dead live rock and sand, (dead live rock being rock that used to be live rock for a salt tank but is just rock now) and as I up the salt content see how the rest of the tank adapted and changes with micros once full salt add in a couple chunks of live rock to get some coralline algae maybe

They go full salt past 4" mark or at very least high end brackish. However huge waterchanges on a 120 with high end brackish is an expensive endeavor. I would increase sg by .001 but no higher than .002 a week until around 1.008 (around here is a transition point for bacteria) then hold it here for several weeks to let bacteria adjust before continuing increases of .001 until around 1.020-1.022 specific gravity. I would cure by rock at my final salinity for around 8 wks before putting it in the tank then at this point I'd add my skimmer as well. I would also start small water changes to transition from tap to RO water.

Personally I have 3 in a 40b and after I get them to around 1.010sg then im drip acclimating for a day to the parameters of my main tank. Big waterchanges & high quantities of marine salt put a hurting on the wallet.
 
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