Colemesus psittacus:

Common, fairly peaceful, better in fresh, but survives light brackish. Found in South America.

Colemesus asellus:

Less aggressive, freshwater. Found in South America.

Tetraodon fahaka:

Very aggressive. Found in N/central Africa from Nile basin in the east & west. Up to 16". Freshwater.

Tetraodon mbu:

Congo River basin, very aggressive. Freshwater. Up to 3 feet! Not to be kept with any other fishes.

Tetraodon miurus:

Aggressive, 'algae-covered rock' looking fish which settles in the rocks & attacks prey from below. Freshwater.

Tetradon shoutedeni:

Found in pool Malebo & Congo river, peaceful except at breeding time. Prefers a little salt. Growth is up to 4".

Chonerhinos:

5 known species, all strictly freshwater, none to be trusted with smaller fish. Found in South America.

Chonerhinos modestus:

Known as "golden puffer" and growth is up to 5". From Borneo, Sumatra, Malaya and Thailand.

Xenopterus:

Thrives in brackish, but does poorly in fresh & marine. Extremely aggressive. It can grow to 11" if left in the wild.

Tetraodon cutcutia:

Common puffer, fresh or brackish, Found on coastal regions of India, Bay of Begal, & Andeman Sea to the Mlay Archipelago. Growth up to 6".

Tetraodon erythrotaenia:

Red-lined puffer, fresh & brackish. Found in Sulawesi (Celebes) Island chain, Indonesia, & New Guinea. Growth up to 4" and mildly aggressive.

Tetraodon nigrifilis:

Green puffer. Found in the Philippines to India. Freshwater and brackish up to 7". Cute & docile while young, nasty in old age! Spawned in aquarium.

Tetraodon leiurus:

Target puffer. Growth up to 5". Fresh & brackish. Found in Thailand. Not aggressive, may be kept with larger fish.

Tetraodon lorteti:

Red-eye puffer. Growth up to 2.5". Male & female look wildly different. Freshwater because it does poorly in marine water.

Tetraodon patoca:

Marine species which enters brackish zones. Found in Coastal India & coastal bay of Bengal, from Andeman Sea to Malaya. Growth up to 12" and is truly a peaceful fish.

Tetraodon biocellatus:

An aggressive freshwater species. Growth up to 8". Found from Thailand, Sumatra, Borneo. Does best in strictly freshwater.

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