Deano1956;4589342; said:so the nurse sharks i see at a local place for 300.00 is the large species?
Yeah - and sadly that's a bit high priced - to boot.
In the Nurse Shark family -there are 3 known species.
The Nurse Shark (Ginglymostoma cirratum) - sometimes called Common Nurse or Atlantic Nurse - is the species found in the western Atlantic, Caribbean, Gulf of Mexico, and eastern Pacific. They mature at 7-7.5 ft long, average about 8-10ft as adults, and are known to reach 11-12 ft long. However some published sources claiming that this species can reach lengths of 13-14 ft. This is the most common species of Nurse found in North American Local Fish shops, and Public Aquariums.
Tawny Nurse (Nebrius ferrugineus) - sometimes called the Indo-Pacific Nurse - is found in the Eastern India Ocean & Western Pacific Ocean. They mature 7.5-8.5 ft long, and are known to reach 10-11 ft long -possible larger. They are sometimes found in Public Aquariums -especially in Asia or Australia.
The Short-tail Nurse (Pseudoginglymostoma brevicaudatum) - is found in the Western Indian Ocean near Madagascar & eastern Africa. They are very rarely found in captiviity - be it in public aquariums or private aquarists. They mature at about 21-24 inches, and are known to reach a maximum size of 30 inches.
Since a fully grown, mature Short-tail Nurse will likely weight about 5 lbs (2.27 kg) or so. Then it would likely only need about 0.25-0.5 lbs or about 4-8 oz of food per week. Which is alot less than the 8-15 lbs per week that a mature(9ft, 300+lbs) Nurse Shark would require.
