Fish · Tilapia
Mozambique tilapia in Florida aquaponics
Oreochromis mossambicus
Mozambique tilapia is a hardy, very salt-tolerant tilapia that breeds younger and smaller than blue or Nile tilapia, and it is a parent of several red and gold color strains. In Florida it is not a home aquaponics fish: FWC and FDACS both say they will not permit it in backyard systems, and only certified commercial farms holding a Restricted Species Authorization may raise it. The most common mistake is buying a red or gold tilapia without knowing it carries Mozambique parentage.1, 2, 3, 5
Where in Florida it works1
Our reading, not a source statement, and it matters only to licensed farms, because home growers may not keep this species anywhere in Florida (see Florida rules). Using the general tilapia limits in SRAC 283 (feeding stops below 63 F, death at 50 to 52 F), an unheated outdoor system in North Florida, which freezes most winters, would likely pass those limits; Central Florida growers would need to watch winter water temperatures; tropical South Florida suits it best. Licensed farms also face the restricted-species containment rules wherever they are.
Our reading of the temperature facts below against UF/IFAS's three regions (North Florida north of State Road 40, Central between 40 and 70, South below 70). A tank with a heater, a greenhouse or a shaded sump changes the answer.
Temperature1, 8
| Optimal water temperature (°F) | 85 to 88 (SRAC 283, tilapia in general) |
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| Growth slows or stops below (°F) | 63 (feeding stops; SRAC 283, tilapia in general) |
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| Lethal low (°F) | 50 to 52 if held a few days (SRAC 283, most tilapia species) |
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No fetched source gives cold limits for Mozambique tilapia by name. SRAC 283 gives 50 to 52 F as the lower lethal range for most tilapia, with only the blue tilapia going lower. SRAC 5007 says that, depending on species, tilapia may begin to die anywhere from 55 F down to 45 F.
Florida rules2, 3, 4, 5, 6
| FWC status | FWC lists Oreochromis mossambicus (Mozambique tilapia) on its "Conditional Nonnative Species List" (page shows no revision date; read 2026-11-02). FWC's aquaponics page says Wami and Mozambique tilapia "Are conditional species and require authorization for live possession, sale and transfer throughout Florida." FDACS calls them restricted species: FDACS-P-01770 (Rev. 12/25) says Mozambique and Wami tilapia (O. mossambicus and O. urolepis), "hybrids of the two species", and the red claw crayfish "are designated as restricted species, requiring a valid Aquaculture Certificate of Registration and a Restricted Species Authorization". |
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| Permit or certificate | Home system: no permit is available. FWC: "Conditional aquatic species cannot be used" for personal-use systems and "Conditional species permits are not issued for personal use". FDACS-P-01770 (Rev. 12/25): "Conditional species are not allowed for personal possession. Neither the Florida Fish and Wildlife Conservation Commission (FWC) nor the Florida Department of Agriculture and Consumer Services (FDACS) will issue a permit to possess these species in backyard aquaponic systems." Commercial: FWC says they "May be used in commercial systems if authorized by an Aquaculture Certificate of Registration and Restricted Species Authorization issued by FDACS". The BMP manual (FDACS-02034 Rev. 11/2023) says restricted species authorizations "expire on June 30 of each year and must be renewed annually". |
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| Selling fish or fingerlings | Live sale or transfer is limited to people FDACS or FWC has authorized for the species, and farms must keep records of every live purchase and sale, including the buyer's authorization, for at least two years (BMP manual; FDACS-P-02060 Rev. 11/25). FWC's Resident Fish Dealer's license "does not allow for the sale of conditional species"; a dealer also needs an FWC conditional species permit, and may sell only to customers who hold one too (FWC aquaponics page). |
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| Also | Restricted species carry extra containment rules (BMP manual; FDACS-P-02060): outdoor water bodies must have the lowest point of their bank or tank edge at least one foot above the FEMA 100-year flood elevation; all holding, transport and culture systems must be of solid construction and stop every life stage from escaping; and the farm must guard against theft. A farm that lets its certificate or authorization lapse must legally and humanely dispose of its restricted fish, or be referred to FWC (BMP manual). FWC: "It's illegal to release any nonnative species in Florida." |
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Rules change and this is a summary; the agency page in the sources is the authority. Check it before you buy, breed or sell.
Growing1, 7, 8, 9
| Stocking | No Mozambique-specific figures were found. For tilapia in general SRAC 282 gives a rule-of-thumb maximum of about 0.25 lb of fish per gallon in well-aerated tanks, and SRAC 5007 about 1 lb per 10 gallons at harvest for new aquaponic growers. |
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| Feed | No Mozambique-specific figures were found. SRAC 5007 recommends floating pellets of 28 to 36 percent crude protein for tilapia in aquaponics. SRAC 283 notes that Mozambique tilapia gather planktonic algae less efficiently than Nile or blue tilapia. |
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| Water quality | Mozambique tilapia grow well in water near or at full seawater strength, which is why they and Mozambique-derived red tilapias are preferred for saltwater culture; breeding falls off above 10 to 15 ppt (SRAC 283). For tilapia in general SRAC 283 gives a survivable pH of 5 to 10 (best 6 to 9). |
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SRAC 283 says most strains bred for color, including true-breeding gold and yellow Mozambique lines, do not grow well enough for food-fish culture. Identification: Mozambique tilapia have weak or no bands on the tail fin, males have an upturned snout and more yellow throat color (SRAC 283); FWC says breeding males are easy to spot by their large mouth and black color, but females look almost identical to blue tilapia and stay smaller, and blue-Mozambique crosses make identification harder.
Breeding and stock1, 5, 10
| How it breeds | Mozambique tilapia mature at a smaller size and younger age than Nile or blue tilapia: in good ponds as early as 3 months and seldom over 2 to 4 oz (60 to 100 g), and in poor ponds at as little as 1/2 oz (SRAC 283). As in all Oreochromis, the female broods the eggs and fry in her mouth (SRAC 283). Some lines have spawned in full seawater (SRAC 283). Crossing Mozambique females with blue or Zanzibar males gives mostly male young (SRAC 283). |
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| Getting fingerlings or stock | Only from, and only to, people authorized by FDACS or FWC for this species (BMP manual). A home grower cannot legally obtain them. |
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SRAC 283 names Mozambique tilapia as a parent of the Taiwanese red tilapia (a reddish-orange mutant Mozambique female crossed with a Nile male) and of the Florida red strain (a Zanzibar female crossed with a red-gold Mozambique). CIR1051 names the Florida red as a blue by Mozambique cross instead. See the red tilapia record.
Florida sellers of fingerlings, breeders and stock
In an aquaponics system1, 2, 8, 11
suited with care
The aquaponics sources speak of tilapia as a group, not of this species: SRAC 454 calls tilapia the most common aquaponics fish, and SRAC 5007 says tilapia do well but grow slowly below 68 F and are limited by state rules. Early, small maturity (SRAC 283) means a mixed-sex tank fills with young fish quickly. In Florida only certified commercial systems with a Restricted Species Authorization may use it. The FAO aquaponics manual could not be fetched.
What this page doesn't cover yet
- No fetched source gives temperature limits for Mozambique tilapia by name; general tilapia figures are shown and labelled.
- No fetched source gives a harvest size, time to harvest, stocking density or feed figure for Mozambique tilapia by name; those fields are null or labelled as tilapia-wide.
- No fetched source comments on Mozambique tilapia as food; eating is null.
- FWC calls this species 'conditional' and FDACS calls it 'restricted'; FDACS-P-02060 explains that restricted species are those listed in the BMPs that need FWC or FDACS authorization. The terms are kept as each agency uses them.
- FDACS-P-01770 lists hybrids of Mozambique and Wami tilapia as restricted; the FWC aquaponics page names the two species but does not mention their hybrids.
- The FAO manual 'Small-scale aquaponic food production' refused the fetch (HTTP 403).
- No fetched source mentions a strain called 'Hawaiian Gold'; SRAC 283 describes true-breeding gold and yellow Mozambique lines without naming them.
Sources
- Tilapia: Life History and Biology. Southern Regional Aquaculture Center (SRAC), SRAC 283. Read 2026-11-02.
- Aquaponics Licenses & Permits. Florida Fish and Wildlife Conservation Commission. Read 2026-11-02.
- Commercial Aquaponics: Rules and Regulations. Florida Department of Agriculture and Consumer Services, Division of Aquaculture, FDACS-P-01770 Rev. 12/25. Read 2026-11-02.
- Conditional Nonnative Species List. Florida Fish and Wildlife Conservation Commission. Read 2026-11-02.
- Aquaculture Best Management Practices Manual. Florida Department of Agriculture and Consumer Services, Division of Aquaculture, FDACS-02034 Rev. 11/2023 (Rule 5L-3.004, F.A.C.). Read 2026-11-02.
- Restricted Species Aquaculture: Rules and Regulations. Florida Department of Agriculture and Consumer Services, Division of Aquaculture, FDACS-P-02060 Rev. 11/25. Read 2026-11-02.
- Tank Culture of Tilapia (revision June 2009). Southern Regional Aquaculture Center (SRAC), SRAC 282. Read 2026-11-02.
- Principles of Small-Scale Aquaponics (September 2015). Southern Regional Aquaculture Center (SRAC), SRAC 5007. Read 2026-11-02.
- Blue Tilapia (species profile). Florida Fish and Wildlife Conservation Commission. Read 2026-11-02.
- Culture of Hybrid Tilapia: A Reference Profile. UF/IFAS Extension, EDIS, CIR1051 (FA012). Read 2026-11-02.
- Recirculating Aquaculture Tank Production Systems: Aquaponics—Integrating Fish and Plant Culture. Southern Regional Aquaculture Center (SRAC), SRAC 454. Read 2026-11-02.
Every fact above is restated in our own words from these documents, written 2026-11-02. Independent of the University of Florida and of every agency named.