Common names: green spotted puffer, GSP, spotted puffer, leopard puffer
Activity level: active/hunter
Adult size: ~6 inches
Life span: 10+ years
Min tank size: 30 gallons
Temperature: 74-80 degrees F
Salinity: high brackish-marine
Diet: Hard diet of mostly crustaceans. While your green spotted puffer is a baby-sub adult, you can offer them a regular diet of snails, shrimp, and a variety of frozen foods, like blood worms and brine shrimp. As adults, you can branch out to foods found at the grocery store, like whole shrimp, crab legs, mollusks, and clams. As an occasional treat, you can offer your puffer red wigglers, ghost shrimp, and other types of feeder insects.
Notes: While green spotted puffers are not freshwater pufferfish, I felt that it was important to include a species profile for them. Many pet stores sell GSP as a freshwater puffer, which is unfortunate because they make great aquarium pets – provided that their basic needs are met, like the proper level of salinity in their environment.
It is very important to incorporate a large quantity of hard shelled foods into your green spotted puffer’s diet – their beaks grow at a relatively fast rate, and as a result, they need to be continually filed down. If you don’t regularly feed them hard foods, like snails and whole shrimp, then your GSP will slowly starve to death unless you manually file their beak down.
Green spotted puffers are very active fish that require an interactive environment to thrive in. If they are not provided with enough stimulation, they will continually “glass surf” – in other words, they will swim up and down the glass out of boredom. They are considered an aggressive fin-nipper, and should not be housed with tank mates.