"A fixed quarantine period proves shrimp are clean"
Use the complete answer. A verdict without its boundary and next action can become another myth.
What is supported
separating each new source contact network reduces opportunities to expose established animals and creates an observation window.
What is not established
one duration detects or clears every organism, proves pathogen-free status or validates routine prophylactic treatment.
What to do next
use a commissioned separate system, dedicated wet equipment, recorded observations and a release decision. Use the quarantine guide.
Exact evidence trace
This is the selected claim-level trace, not every source used by the broader guide. Roles describe how each record is used here; they are not quality grades.
Evidence records
- direct support Epibiont Cohabitation in Freshwater Shrimp Neocaridina davidi with the Description of Two Species New to Science, Cladogonium kumaki sp. nov. and Monodiscus kumaki sp. nov., and Redescription of Scutariella japonica and Holtodrilus truncatus: Documents identified epibionts and observation limits without validating one clearance interval.
- direct support Microhabitat distribution and behaviour of Branchiobdellidan Holtodrilus truncatus found on the freshwater shrimp Neocaridina spp. from the Sugo River, Japan: Documents host-associated worm observations while leaving transmission probability and quarantine duration unresolved.
- direct support First report of microsporidians in the non-native shrimp Neocaridina davidi from a temperate European stream: Documents molecularly examined microsporidian material without creating a universal visual screen or treatment.
Supporting authorities
- Procedures for the quarantine of live aquatic animals: a manual: Supports risk-based aquatic quarantine principles without a universal Neocaridina duration.
- Aquatic Animal Health Code, Chapter 4.1: Biosecurity for aquaculture establishments: Supports movement and contact-network biosecurity principles.
Named open questions
- Which treatment doses are effective and safe for confirmed Neocaridina health agents? One three-aquarium conference abstract reported complete Deugesia removal and three-day survival of all 12 shrimp after mebendazole or albendazole additions, but it omitted aquarium volume, usable concentration, replicated vessels, explicit control results, sublethal endpoints and recurrence follow-up. No controlled efficacy-and-safety trial was located for common hobby salt, fenbendazole, praziquantel or peroxide doses against named Neocaridina health agents.
Inspect the broader guide evidence dossier for all records, authorities, gaps, searches and changes connected to the practical guide.
Share the complete answer
Open the plain-text answer or open the original teaching card.
The detailed guide owns the evidence and limitations. Challenge this claim with a stable source if an important boundary is missing or stale.