Macrostoma Male (M303)

Receive an 8 cm male Macrostoma selected directly from controlled holding tanks, ensuring each specimen delivers the exact scale contrast and fin symmetry shown in the product photograph.

Unlike pool-harvested stock that varies genetically, this M303 unit originates from a single measured drop. You receive breeder-generated documentation detailing harvest conditions and observed trait consistency, which supports transparent lineage tracking and predictable coloring when used in cross-breeding protocols. The animal arrives with intact marginal fin tissue, active gill movement, and sustained swimming behavior—tangible indicators of successful transport conditioning and reduced transit stress.

For aquarium placement, the male’s high-contrast lateral patterning remains sharply defined against light gravel or low-profile aquascapes. It establishes routine quickly in properly filtered freshwater setups once you match the included arrival parameters to your existing water chemistry. Introduce the fish using a slow drip-acclimation method to align temperature and pH gradually, preventing osmotic shock. After settling, it interacts steadily with compatible community species without aggression.

• Measurable donor batch prevents genetic dilution found in bulk wholesale shipments
• Breeder documentation accompanies each order for tracking developmental traits
• Packaged to prioritize dissolved oxygen retention and thermal buffering throughout transit
• Standard freshwater compatibility once baseline parameter equalization takes place

This configuration removes visual guesswork from your inventory selection. The structural integrity of the fins and consistent metabolic activity confirm that the specimen crossed the distribution chain in optimal condition, making it a reliable foundation for advanced breeding programs or stable display systems.