Macrostoma Male K Tail (M305)

The Macrostoma Male K Tail (M305) is an 8 cm, fully conditioned male selected for strong scale contrast and symmetrically developed fin rays. Each specimen is measured individually from controlled holding tanks rather than taken from pooled wholesale inventory, giving aquarium keepers and selective breeders a more consistent phenotype to work with.

Selected for Display and Breeding

Its high-contrast lateral patterning remains easy to see against pale substrates and muted foreground plants, making this male a distinctive centerpiece for a freshwater aquarium. The selected coloration and developed fin structure also make it suitable for breeders seeking more predictable traits in future generation crosses instead of relying on uncertain bulk-stock variation.

• Size: 8 cm
• Sex: Male
• Type: Macrostoma K Tail
• Selection: Individually measured, breed-selected phenotype
• Condition: Fully conditioned before shipment
• Documentation: Breeder-generated records outlining harvest parameters and observed trait consistency

Arrival and Aquarium Acclimation

Transport handling is designed to retain dissolved oxygen and provide thermal buffering, while sustained locomotion and intact marginal fin tissue are checked before departure. On arrival, introduce the fish gradually so it can adjust to the pH and temperature of the main aquarium. A properly filtered habitat with stable water chemistry supports active respiration and helps the specimen establish efficiently.

Transparent lineage tracking begins on arrival, providing useful reference for keepers who are monitoring phenotype development or planning controlled breeding work.