Garra Rufa (Doctor Fish)

Tank Setup:

The 'River Rapids' Design. They are incredibly hyperactive swimmers that eventually reach a chunky 5.5 inches. They require long tanks (minimum 48 inches / 120 cm). Avoid slow, stagnant, heavily planted blackwater tanks. They thrive in 'Hillstream' setups: fill the bottom with smooth river stones, flat boulders, and run a powerful wavemaker (powerhead) to simulate strong, sweeping river currents. THE FLIGHT RISK: They are phenomenal jumpers and literally possess the ability to 'slither' and climb up wet glass above the waterline. Your tank lid MUST be heavily secured with zero gaps, or they will dry out on your carpet.

Feeding:

The Ultimate Voracious Grazer. They are famous for a reason: they will try to graze on anything (including your hand if you put it in the tank). In the wild, they scrape 'Aufwuchs' (a carpet of green algae filled with microscopic bugs). Feed them high-quality sinking algae wafers, spirulina flakes, and supplement with frozen bloodworms and brine shrimp. Blanched zucchini and spinach are also greedily devoured.

Water Quality:

The Oxygen Demand and Thermal Tolerance. They possess a legendary, almost bizarre tolerance for temperatures. While naturally preferring 65-75°F (18-24°C), they survive in the thermal hot springs of Turkey near 90°F (32°C). However, they have absolutely ZERO tolerance for poor oxygen or high Nitrates. You must provide massive surface agitation (splashing filters, airstones) to keep dissolved oxygen extremely high, coupled with rigorous 40% weekly water changes.

Compatibility:

The 'Schooling Bully' Risk. They are highly active and can be annoying to other fish. They belong with fast, robust, similarly hyperactive river fish: Giant Danios, Rainbowfish, Clown Loaches, or Siamese Algae Eaters. THE LETHAL MISTAKE: Never keep them with slow-moving, long-finned, or flat-bodied fish (Angelfish, Discus, Bettas, Fancy Goldfish). The hyperactive Garra will swarm them, relentlessly picking, grazing, and nipping at their fins and slime coat, causing extreme, fatal stress.

Reproduction:

The Commercial Spa Industry. They are incredibly difficult to breed naturally in home glass boxes. Because they are demanded by the millions for the global 'Fish Spa' pedicure industry, they are bred in massive commercial vats using hormone injections. They are egg-scatterers with absolutely zero parental care, meaning adults will happily turn around and immediately eat every single egg they just laid among the gravel.

Risks and Diseases:

1. THE LONE TERRORIST (Solitary Confinement Syndrome): If you make the beginner mistake of buying just ONE 'Garra Rufa' to clean your algae, the fish will become deeply stressed, bored, and highly aggressive. It will dedicate its entire life to terrorizing, chasing, and nipping every other fish in the tank. They MUST be kept in a minimum school of 6 individuals, which forces them to chase and bicker among themselves instead of harassing your other community fish. 2. ESCAPE ARTIST DRY-OUT: They are notorious for escaping through filter cut-outs in the lid.