Fish identification archive / Redtail Parrotfish

Redtail Parrotfish

Sparisoma chrysopterum

Fun facts for your next surface interval

Beyond the beak: The beak is only the first processing stage: crushing plates form a mill in the throat.
Two tails, two species: Redtail and yellowtail parrotfish are different species, not alternate color phases.
A parrotfish plot twist: Species-specific reproductive evidence cautions against assuming all parrotfishes change sex.

Florida and local context

Palm Beach County / Lake Worth Lagoon: Florida Museum places an x in the Verified column for this exact scientific identity in its Lake Worth Lagoon list. This is a regional record, not a count, frequency estimate or guaranteed sighting.

Documented regional presence is not a guarantee of an encounter or a measure of how common this animal is at your dive site.

How to recognize this animal

Redtail parrotfish have an elongated body, a relatively pointed head, large scales and fused beak-like teeth partly covered by lips. Terminal-phase fish are blue-green, with a yellow pectoral fin bearing a black upper-base blotch and an elongated blue patch behind it. Their concave tail carries a brown curved band, a yellowish band and a red outer crescent.

Size and life stages

The species reaches about 46 centimeters, approximately 18 inches. Initial-phase fish are gray-brown to reddish-brown, with red spots on the chest and belly scales, a dark upper pectoral-base blotch and a reddish rear tail. They do not resemble a miniature brightly colored terminal-phase fish. Color phase should be recorded separately from any unverified claim about sex or maturity.

Habitat and where to look

Rubble and seagrass beside reefs are characteristic habitats, with occasional use of the reef itself. Smithsonian records depths of 1–61 meters. Florida Museum specifically identifies redtail parrotfish among juvenile and immature-adult fishes using Florida Keys seagrass. That evidence supports Florida occurrence without turning a general habitat list into proof of a sighting on a particular Palm Beach dive.

Range and local context

Smithsonian gives a western Atlantic range from Bermuda to the southern Caribbean. Florida Museum also explicitly documents juvenile and immature redtail parrotfish in Florida Keys seagrass habitat. Florida Museum explicitly marks its Lake Worth Lagoon record as verified, supporting Palm Beach County occurrence. This does not measure present abundance or guarantee an encounter at a particular dive site.

What is on the menu?

Algae are a principal part of the diet, with the species database also listing plant material and attached invertebrate groups. The beak works at the front of the mouth, while crushing plates deeper in the throat form a pharyngeal mill. A bite on a surface may remove mixed material, so a diver cannot reliably identify the complete diet from one feeding image.

Daily habits and behavior

Its continuous dorsal fin has no strong notch between the spiny and soft portions, and the lateral line is divided into two sections. These structural features remain useful when color is muted or changed by underwater lighting. A broad side view of the pectoral base and tail is particularly valuable because those markings separate this species from several similarly colored parrotfishes.

Mating and the next generation

This is an egg-laying fish with external fertilization, classified by FishBase as an egg scatterer without parental care. Do not assume every parrotfish changes sex: the species-specific review notes evidence favoring separate sexes in redtail parrotfish despite older suggestions of protogyny. A brightly colored terminal-phase individual therefore does not by itself demonstrate that a sex change occurred.

Look-alikes and identification traps

Yellowtail parrotfish are Sparisoma rubripinne, a different species; redtail is Sparisoma chrysopterum. Redband and related parrotfishes also require careful comparison of the pectoral-base mark, flank patch and tail bands. Initial-phase fish can be especially confusing. Keep uncertain brown individuals at the appropriate broader identification level instead of assigning a species from a reddish tail alone.

Observe without disturbing

Give feeding fish room to continue naturally, and keep equipment off the rubble and grass they use. Do not feed, touch or trap one to expose its beak. Photograph the entire side with a separate tail view if possible, and record the apparent color phase. Florida's recreational marine-life rules require any lawful collection of this species to remain live; it is not treated here as a food-fish opportunity.

Harvest, protection and eating safety

LIVE COLLECTION ONLY — NO FOOD HARVEST

Florida state and adjacent federal waters: limited licensed live collection may be lawful, with live landing/holding, life support, species size rules and bag/possession limits. No species-specific annual closed months are listed, but Blue Heron Bridge, Biscayne and other area closures override that allowance. This is not a blanket ban on lawful live collection or an eating recommendation. Listed-group collection is also prohibited in John Pennekamp.

This color is a qualified summary, not permission to collect or a guarantee that a particular catch is safe to eat. Read the current rules and health guidance below.

Restricted live collection only; no spearing; protected collection areas apply

Can it be hunted or harvested?

Redtail Parrotfish belongs to Florida's regulated marine-life category (parrotfish family Scaridae). Food harvest is not authorized by these live-only rules. Where collection is lawful, a saltwater license is required unless exempt; organisms must be landed and kept alive in an adequately sized continuously circulating, aerated or oxygenated system. Maximum: 12 inches total length. Daily limit: five of this species within 20 total marine-life organisms per person. Two-day possession: ten of this species within 40 total. Recreational sale is prohibited.

Florida seasons and areas

No species-specific annual closed months are listed for this live-collection category. Florida marine-life requirements apply in state and adjacent federal waters on both Atlantic and Gulf coasts. Collection is prohibited inside the designated Blue Heron Bridge dive-site boundary, throughout Biscayne National Park and for this listed group in John Pennekamp Coral Reef State Park. The designated Western Dry Rocks area closes to all fishing April 1–July 31. In Biscayne National Park, the designated bonefish pre-spawning area closes to fishing and fish possession March 1–May 31; continuous transit with fish and gear properly stowed is allowed. Sanctuary, park and refuge zones may impose additional no-take or gear restrictions. These are area rules, not a claim that every Florida site is closed.

Can it be speared?

No. This species must remain alive, and spears are not an authorized recreational marine-life method. Where otherwise lawful, authorized gear is hand collection, permitted hand-held, drop or barrier nets, or a slurp gun. Quinaldine is prohibited. Protected-area rules override any general collection allowance.

Is it safe to eat?

Not a food-harvest species under the applicable live-only rules. Aquarium collection does not establish edibility or food safety. This identification page cannot establish that a particular catch is safe to eat. Consult current Florida DOH advice for the exact species and capture water, especially for pregnancy, breastfeeding and children. Do not borrow an advisory for a similarly named fish. Prompt chilling and proper cooking reduce some hazards, but cooking does not remove mercury or all marine toxins; absence of a named advisory is not a safety clearance.

Before you act: This recreational overview is not permission to collect or spear at your dive site. Confirm the species, date, management area, state or federal waters, gear, licenses and current local closures. Identification artwork cannot establish an identification or guarantee seafood safety.

Official rules and health guidance

Reviewed 2026-11-10. Rules and advisories can change; check the linked authorities before harvesting or eating.

Sources and review

Reviewed 2026-11-10.

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