hmmm...maybe a blue dot puffer?
Blue Dot Puffer - Canthigaster epilamprus
Also known as: Lantern Goby
Maximum Size: the Canthigaster epilamprus grows up to 6 inches.
General Size Specifications: The small size will come to you generally 1 to 2 inches; the medium generally 2 to 3 inches; the large generally 3 to 4 inches.
Minimum Tank Size: The Blue Dot Puffer prefers a tank of at least 50 gallons with plenty of places to hide & swim.
Diet: The Canthigaster epilamprus is a omnivore and likes to eat variety of chopped meats (fish, scallop, shrimp, squid, clam).
Level of Care: The Blue Dot Puffer is a medium maintenance fish.
Behavior: The Blue Dot Puffer may act semi-aggressively toward other fish. It is a venomous fish, the flesh is poisonous. Do not eat. If ingested seek immediate medical attention.
Hardiness: This is a hardy fish.
Water Conditions: Keep water quality high (SG 1.020 - 1.025, pH 8.1 - 8.4, Temp. 72 - 78° F).
Range: Fiji.
General Notes: The Blue Spot Puffer, often better known as the Blue Dot Toby or Sharp-nosed Puffer is suitable for most fish only systems. It is known for being aggressive and may nip tankmates. A nocturnal hunter, Blue Spot Puffers like to eat invertebrates. It is important that it does this as it needs to keep it's teeth worn down. The Blue Spot Puffer, when frightened or distressed may inflate 2x it's original size. Forcing this animal to repeatedly puff can result in death due to stress. Do not expose it to air when it is puffing up as ingestion of air is often difficult to expel
