Medicines · Chemical / Disinfectant
eSHa 2000
- Active Ingredient
- Ethacridine lactate, copper 2+, methyl orange, proflavine
- Medicine Type
- Chemical / Disinfectant

Observe and distinguish
Identification and context
Identity and formulation
eSHa 2000 is a multi-ingredient product for tropical and coldwater ornamental fish in freshwater aquariums. Spectrum, tolerance and preventive use are manufacturer claims for this formulation, not evidence transferable to the individual active ingredients.
Supported indications
The manufacturer lists external bacterial, fungal and parasitic signs and conditions, including fin rot, wounds, Saprolegnia and some skin or gill problems. These claims do not replace agent identification, water-quality assessment and reassessment if the fish worsens.
Diagnostic prerequisites
Confirm host, diagnosis, net volume, water quality and exact formulation before use. Do not transfer directions between products.
Verify before intervening
Confirmation and decisions
Label directions
For eSHa 2000 only and according to the current leaflet: standard 3-day treatment in 100 L, 25 drops on day 1 and 12 drops on days 2 and 3. Calculate net volume and verify the pack and local directions before use; do not transfer this dose to other products.
Preparation and monitoring
Formulated product for freshwater ornamental fish, not animals intended for consumption. The official site states that its FAQ is general information and does not replace the leaflet; verify the pack version and local regulatory status.
Species and system compatibility
Freshwater only. The manufacturer advises caution with shrimp and crayfish and warns that the product may kill snails and algae; promptly remove dead material because ingestion or decomposition may harm animals. Do not turn “well tolerated by fish, plants and filters” into a universal safety claim. Follow the leaflet for adsorbing media, UV and combinations.
Interactions and contraindications
Freshwater only. The manufacturer advises caution with shrimp and crayfish and warns that the product may kill snails and algae; promptly remove dead material because ingestion or decomposition may harm animals. Do not turn “well tolerated by fish, plants and filters” into a universal safety claim. Follow the leaflet for adsorbing media, UV and combinations.
Proportionate actions
Management and monitoring
Adverse effects and failure
Freshwater only. The manufacturer advises caution with shrimp and crayfish and warns that the product may kill snails and algae; promptly remove dead material because ingestion or decomposition may harm animals. Do not turn “well tolerated by fish, plants and filters” into a universal safety claim. Follow the leaflet for adsorbing media, UV and combinations.
Operator safety
Formulated product for freshwater ornamental fish, not animals intended for consumption. The official site states that its FAQ is general information and does not replace the leaflet; verify the pack version and local regulatory status.
Regulatory status
Check authorisation, prescription status and conditions of use in the user’s jurisdiction; ornamental and food-producing animals are not interchangeable.
Evidence limitations
Manufacturer directions document only the stated formulation. Efficacy, safety and dosage do not automatically extend to the active substance or other products.
Active ingredient identity
Composition and chemical data
Synergistic blend of ethacridine lactate, copper (II), methyl orange, and proflavine.
Safety Hazards (GHS)
- Harmful if swallowed
- Causes serious eye irritation
Transparency
Information and documentation
Information
- Active Ingredient
- Ethacridine lactate, copper 2+, methyl orange, proflavine
- Medicine Type
- Chemical / Disinfectant
Documentation
- Product Page
eSHa Labs — eSHa 2000 official product information, directions and compatibility
MANUFACTURER DOCUMENTATIONCONTEXT ONLYManufacturer documentation is formulation-specific and is not independent evidence of efficacy.
- Chemical Data
PubChem Chemical Data