Tank Size:
* Minimum: 55 gallons, but ideally 75 gallons or larger is preferred.
* They get large (up to 18 inches) and need ample swimming space.
Water Parameters:
* Temperature: 72-78°F (22-25°C)
* pH: 6.5-7.5
* Hardness: 5-15 dGH
* Ammonia, Nitrite, Nitrate: Keep these at 0 ppm.
Substrate:
* Sand or fine gravel: This is best for their sensitive barbels (whiskers).
Decor:
* Lots of hiding spots: Iridescent Sharks are shy and prefer dimly lit tanks with caves, rocks, driftwood, and plants to create hiding places.
* Avoid sharp objects: They can easily injure themselves on sharp edges.
* Live plants: While they may nibble on some plants, they are generally plant-friendly.
Water Flow:
* Moderate to strong: Iridescent Sharks need a good current. Use a powerhead or filter that creates some current.
Filtration:
* Heavy-duty filtration: A canister filter is recommended for the amount of waste these fish produce.
Feeding:
* Omnivorous: Feed a varied diet including:
* Sinking pellets
* Flakes
* Frozen bloodworms
* Mysis shrimp
* Earthworms
* Small pieces of fish
Tankmates:
* Choose carefully: Iridescent Sharks can be aggressive towards smaller, slower fish.
* Good Tankmates: Other larger, peaceful fish like other catfish species, plecos, and large loaches.
* Avoid: Small, delicate fish, and fish with long fins.
Other Important Notes:
* Cycling: Properly cycle your tank before introducing your fish.
* Regular water changes: Do 25-50% water changes weekly.
* Observe: Pay attention to your fish's behavior. They may be hiding more than usual if stressed.
* Consider a larger tank: If possible, plan to upgrade to a larger tank as your shark grows.
Remember: Iridescent Sharks are a beautiful and fascinating fish, but they need a lot of space and care. Do your research before getting one to make sure you can provide them with a healthy environment.