Please Note: Product sold in 10-Packs (1 Pack = 10 Microchips). International Shipping: Contact us for overseas orders of 20+ packs.

Small 8mm × 1.4mm FDX-A implantable PIT tag for aquaculture broodstock, juvenile fish, fingerlings, and crustacean breeding programs — supplied as a sterile 10-pack with single-use needles.

About this product

The Trovan ID100 Midi is a small glass-encapsulated FDX-A microchip / PIT tag designed for individual identification in aquaculture and fisheries applications. At just 8mm long and 1.4mm in diameter — substantially smaller than the conventional Trovan ID100C (11.5mm × 2.1mm) — it's the size of choice for juvenile aquaculture stock and small fish where a conventional chip is too large.

Ideal for

• Juvenile fish and fingerlings — barramundi, salmon, trout, kingfish, native freshwater species
• Hatchery and grow-out tracking — individual identification through grow-out cycles for growth and feed-conversion studies
• Crustacean and shellfish farming — abalone, prawns, redclaw, yabbies, marron
• Selective breeding programs — linking individual stock to genetic, phenotypic and growth-rate data
• Pearl farming — individual oyster identification for breeding and grading research
• Fisheries research — mark-recapture studies in rivers, lakes and hatchery raceways

Why Trovan FDX-A (not FDX-B / ISO) for aquaculture

The Trovan Unique ID100 (FDX-A) protocol is the most widely-used implantable RFID system in Australian aquaculture and fisheries research. FDX-A tags work with the full range of Trovan reading systems — handheld scanners, swim-through tunnel antennas, frame-type readers (e.g. AquaPocket), and submersible creek-bed receivers — whereas ISO FDX-B tags often can't be read reliably (or at all) by these systems.

Note: Trovan FDX-A microchips are NOT suitable for companion dogs, cats or horses in Australia — Australian legislation requires ISO FDX-B for companion animals. For broodstock, hatchery and research animals, FDX-A remains the industry standard.

Format and supply

Each microchip is pre-loaded into an individual single-use sterile needle. Implantation requires the dedicated Trovan IM200 (1.4) Midi syringe implanter (re-usable, sold separately). Each 10-pack includes 6 adhesive labels per chip showing the microchip number and barcode.

Choose 'Enviro-Aqua' for less plastic waste

Our 'Enviro-Aqua' format ID100 microchips deliver the same Trovan reliability in a slimmed-down 'in-needle-only' format — same chip, less plastic. Learn more about 'Enviro' microchips →

Learn more about PIT tag protocols, sizing, and Australian use cases in our complete PIT tags Australia guide.