Species description

Care, breeding and tankmates

Fish profile

Temperament

Peaceful

They are completely peaceful and social. They love schooling with other comets. Fast movements are just enthusiastic energy.

Diet

Omnivore

They thrive on varied omnivorous diets. Sinking pellets prevent dangerous surface gulping. Fresh greens support healthy digestion.

Sex ratio

Group

Two males per female ensures fertilization. General display tanks need no specific ratio. Avoid keeping only one heavily harassed female.

Feeding frequency

Continuous

Two small daily meals are optimal. Overfeeding causes fatal ammonia spikes. Remove uneaten food after three minutes.

Bioload

Extreme

Comets produce a substantial biological waste load. Their fast growth demands oversized filtration. Weekly massive water changes are vital.

Flow

Strong

They appreciate moderate to strong currents. Their streamlined bodies handle flow easily. Circulation keeps their water heavily oxygenated.

Jump risk

No

Reproduction

Oviparous

Spring temperatures trigger active spawning behavior. Males aggressively chase females until exhaustion. Sticky eggs are scattered and abandoned.

Compatibility & tankmates

Species only

They are incredibly fast and boisterous. Slower fish can get easily stressed. Keep them with large pond fish.

Tank level

All levels

The Comet goldfish is an exceptionally agile and wide-ranging fish that will dynamically utilize every single level of the water column. Similar to common goldfish, they spend a considerable portion of their day scanning the bottom substrate for food particles and algae. However, their sleek, hydrodynamic bodies allow them to effortlessly dart into the middle and upper levels, especially when anticipating food from their caretakers. Providing a spacious, long aquarium is essential to accommodate their continuous movement across all depth zones.