Green Puller

About

The green puller (Mecaenichthys immaculatus) is a damselfish native to the inshore rocky and weedy reefs of New South Wales, Australia, making it something of an oddity in a hobby dominated by tropical Indo-Pacific species. Its temperate origins mean it thrives at cooler water temperatures than most reef fish you'll encounter, which is worth keeping in mind when planning a tank around it. The name suggests a greenish cast to the body, and its clean, unmarked appearance, immaculatus means spotless, gives it a understated look compared to many of its more colorful damselfish relatives. In the wild, adults stick close to reef structure, using rocky outcroppings and algae growth as shelter and hunting grounds. Like most damsels, it's a carnivore and will readily accept meaty prepared and frozen foods in captivity. Breeding behavior is genuinely interesting to observe. Pairs form during spawning, eggs are laid directly on the substrate where they stick in place, and the male takes on active guarding and fanning duties until the eggs hatch. Rated as beginner-friendly, this is a manageable fish for someone setting up a cool-water or temperate marine system, a niche that doesn't get nearly enough attention in the hobby.