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Silver Flying Fox
Crossocheilus reticulatus
📍 Southeast Asia
The Silver Flying Fox (Crossocheilus reticulatus) is an active, algae-eating cyprinid from Southeast Asia, prized for its ability to consume various types of algae including black beard algae. It features a sleek, silver body with a distinctive reticulated scale pattern and a characteristic horizontal stripe. This species is a great addition to planted tanks needing natural algae control, though it can become territorial with age.
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Care Guide
Diet
The Silver Flying Fox is primarily an herbivore/omnivore that excels at consuming algae, including the notoriously difficult black beard algae. Supplement its diet with high-quality sinking algae wafers, blanched zucchini or spinach, and occasional protein-rich foods like bloodworms or brine shrimp. Feed once or twice daily, offering only what can be consumed within a few minutes.
Behavior
Silver Flying Foxes are active, fast-moving fish that spend most of their time grazing on surfaces such as rocks, driftwood, and plant leaves. They can be territorial toward their own kind and similar-looking species, especially in smaller tanks, so it is generally best to keep only one unless the aquarium is very large. They are peaceful toward dissimilar fish and are most active during the day.
Breeding
Breeding Crossocheilus reticulatus in captivity is extremely rare and has not been reliably documented in home aquaria. Like many cyprinids, they are thought to require specific hormonal or environmental triggers to spawn. Most specimens available in the hobby are wild-caught or commercially bred using hormone injections.
Tank Mates
Peaceful, similarly sized schooling fish that occupies the middle zone without competing with the Flying Fox
Peaceful and small, unlikely to provoke territorial responses from the Flying Fox
Bottom-dwelling but non-competitive; both species generally ignore each other
Peaceful mid-to-top dweller that does not encroach on the Flying Fox's territory
Similar body shape and feeding habits can lead to territorial disputes; provide ample space
Occupies similar zones but is generally tolerated; ensure enough algae and food for both
Common Diseases
Ich (White Spot Disease)
Small white spots resembling grains of salt on body and fins, flashing against surfaces, lethargy
Raise temperature gradually to 28-30 C, treat with ich-specific medication such as copper-based treatments or malachite green; perform frequent water changes
Fin Rot
Frayed, discolored, or deteriorating fin edges, sometimes with reddening at the base
Improve water quality with frequent water changes, treat with antibacterial medication such as kanamycin or erythromycin
Velvet (Oodinium)
Gold or rust-colored dust-like coating on skin, rapid gill movement, flashing, lethargy
Dim lighting, treat with copper-based medication or acriflavine; quarantine affected fish and raise temperature slightly
Intestinal Parasites
Wasting despite good appetite, stringy or white feces, bloating
Treat with antiparasitic medication such as metronidazole or praziquantel added to food or water; quarantine affected individuals
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Quick Facts
- diet
- Omnivore/herbivore – algae, biofilm, sinking pellets, blanched vegetables
- lifespan
- 5-8 years
- max size
- 13 cm (5 in)
- tank size
- 55 gallons minimum
- temperament
- semi-aggressive
Water it likes
- ph
- 6.5-7.5
- ammonia
- 0 ppm
- nitrate
- <20 ppm
- hardness
- 2-12 dGH
- temperature
- 72–79°F (22–26°C)