Bumblebee Shrimp – Reef Safe

The Bumblebee Shrimp (`Gnathophyllum americanum`) is a captivating, micro-sized addition to the home marine aquarium. Reaching a maximum size of just under one inch, these tiny invertebrates boast striking black, white, and yellow bands that closely mimic their insect namesake. They are incredibly peaceful creatures that go about their business with a quiet, methodical grace. Due to their miniature stature, they are best suited for nano or pico aquariums where their intricate patterns can be easily observed without them getting lost in a massive aquascape.

Reef Compatibility

While completely safe for corals, these shrimp possess a highly specialized predatory nature directed solely at echinoderms. In the wild, their primary diet consists of the tube feet of starfish, sea urchins, and sea cucumbers. Therefore, while they will leave your reef-building corals untouched, they pose a lethal threat to desirable ornamental starfish like Linckia or Fromia species. Conversely, this specific appetite makes them an excellent, natural biological control for aquarists struggling with nuisance Asterina starfish outbreaks.

Care Requirements and Tank Mates

Maintaining these delicate invertebrates requires stable water parameters and a well-established, mature aquarium. Because of their tiny size, they are highly vulnerable to predation and should never be housed with larger, aggressive tank mates like wrasses, hawkfish, or dottybacks. Ideal companions include peaceful nano fish such as clown gobies, firefish, and small blennies. Providing plenty of live rock rubble, small caves, and tight crevices will give them the necessary security to molt and forage safely.

Quick Reference Care Guide

Feeding Guidelines

If your aquarium does not harbor a naturally occurring population of Asterina starfish, you must proactively supplement the shrimp’s diet. They can be trained to accept finely chopped meaty foods such as mysis shrimp, enriched brine shrimp, and high-quality frozen carnivore blends. Because they are slow, methodical eaters, it is highly recommended to use a feeding pipette or aquatic tweezers to deliver the food directly to them. This targeted feeding ensures that faster, more aggressive tank mates do not steal their meals before they have a chance to eat.

Summary of Key Points

• Micro-Sized Marvels: Maxing out at less than an inch, they are perfect, peaceful candidates for nano and pico reef tanks.
• Coral Safe: They will not harm, consume, or irritate soft, LPS, or SPS corals.
• Specialized Predators: They are the perfect natural remedy for Asterina starfish plagues, but they cannot be housed with ornamental starfish or small sea urchins.
• Vulnerable to Predation: Must be kept with small, docile fish and provided with ample rockwork for hiding.
• Target Feeding Required: If live starfish are not present in the tank, they require direct feeding with meaty frozen foods to thrive.