When it comes to large freshwater fish, few species make as much of an impression as the Redtail Catfish and the Tiger Shovelnose. Both are popular among experienced hobbyists, but they differ in behavior, care requirements, and tank needs. Choosing the right species for your setup is crucial to ensure a thriving aquarium. At Monster Aquarium, the best fish store in Flushing, NY, we help fish enthusiasts make informed decisions about these giant freshwater fish.
Redtail Catfish: The Classic Monster
Redtail Catfish are legendary for their size and striking appearance. They can grow over three feet in length, so space is a top priority. A tank for a full-grown Redtail should start at 300 gallons or more, with robust filtration to handle their high waste output.
Behavior-wise, Redtails are generally peaceful with other large, robust tank mates but can become predatory toward smaller fish. They prefer a calm environment with plenty of hiding spots like driftwood or rock caves. Feeding a Redtail is straightforward—they enjoy a diet of pellets, shrimp, and occasional live food. However, their voracious appetite means you must monitor feeding to avoid overfeeding and maintain water quality.
Tiger Shovelnose: The Sleek Predator

Tiger Shovelnose Catfish are equally impressive but differ in personality and care. They grow slightly smaller than Redtails, typically around two to three feet, but are more active swimmers. Tanks should be at least 250 gallons with strong filtration, and they thrive in setups with open swimming space and some hiding spots.
Shovelnose are known for their intelligence and curious behavior. They can recognize their owners and even interact during feeding times. While generally peaceful toward similar-sized fish, Tiger Shovelnose are carnivorous and may eat smaller tank mates. A diet of high-protein pellets, frozen foods, and occasional live fish works best.
Tank Compatibility and Maintenance
Both species require advanced care and commitment. Redtails need more space due to their size and slower, heavier movements, while Shovelnose demand more frequent monitoring because of their active nature and sensitivity to water quality changes. Both benefit from regular water changes, consistent water temperature, and quality filtration.
For hobbyists considering mixed tanks, avoid housing either species with small, delicate fish. Large, robust species are the only safe companions. Additionally, provide plenty of hiding spots and visual barriers to reduce territorial disputes.
Making the Right Choice
Deciding between a Redtail Catfish and a Tiger Shovelnose comes down to tank size, experience, and the type of behavior you prefer in a fish. If you want a slow-moving, impressive centerpiece that can coexist with other large fish, Redtail Catfish are ideal. If you enjoy active, curious fish that interact more with their environment, the Tiger Shovelnose is a better match.
At Monster Aquarium, the best fish store in Flushing, NY, we offer both species for sale, along with expert advice to ensure your tank is properly prepared. Our team can guide you on feeding schedules, tank setup, and long-term care, so your monster fish thrive in a healthy, stress-free environment.
FAQs
1. How big should a tank be for a Redtail Catfish?
A mature Redtail needs a tank of at least 300 gallons with strong filtration to handle their size and waste output.
2. Can Tiger Shovelnose Catfish live with other fish?
Yes, but only with large, robust species. Smaller fish will likely be eaten.
3. What is the ideal diet for these monster fish?
Both species thrive on high-quality pellets, frozen foods, and occasional live food to meet their protein needs.
4. How often should I clean a tank with a Redtail or Shovelnose?
Frequent maintenance is crucial. Partial water changes weekly and regular filter checks help maintain water quality.
5. Which species is better for beginners?
Neither is ideal for beginners. Both require large tanks, strong filtration, and careful monitoring, making them best suited for experienced hobbyists.