Understanding the Nutritional Needs of Severums, Geophagus, Discus and Other Amazonian Cichlids
South American cichlids come from some of the most diverse freshwater ecosystems on the planet. Rivers like the Amazon and Orinoco host fish that have evolved to feed on a complex mix of insects, crustaceans, plant matter, and small aquatic organisms.
Popular aquarium species such as Severums, Geophagus, Discus, and Angelfish thrive when their diet reflects this natural balance. Providing the right food not only improves coloration and growth, but also supports digestion and long-term health.
Understanding how these fish feed in nature helps aquarists choose the right diet for their aquariums.
The Natural Feeding Behavior of South American Cichlids
Unlike aggressive predators such as Oscars, most South American cichlids are opportunistic feeders.
In the wild they constantly sift through sand, leaves, and submerged wood searching for:
- insect larvae
• small crustaceans
• worms
• organic detritus
• plant material
Species such as Geophagus are famous for their sand-sifting behavior, while Severums and Discus graze and pick food throughout the day.
Because of this natural feeding style, these fish do best with smaller, easily digestible food particles that resemble the tiny organisms they consume in nature.
Large pellets often go ignored or create unnecessary waste in the aquarium.
Why Pellet Size Matters
One of the most overlooked aspects of feeding medium South American cichlids is pellet size.
Many foods on the market are designed for large predatory cichlids such as Oscars and therefore come in large pellets. However, fish like Severums, Geophagus, Discus and Angelfish naturally feed on much smaller prey.
A smaller pellet size offers several advantages:
- easier for fish to consume
• better digestion and nutrient absorption
• less uneaten food and cleaner water
• more natural feeding behavior
This is why foods designed for these species should focus on fine pellets or crumbled textures rather than oversized pellets.
Designed for Medium South American Cichlids
Teraa South American Extreme is designed specifically with these feeding behaviors in mind.
The formula uses 0.75 mm crumbled pellets, making it ideal for medium-sized South American cichlids that naturally consume small prey in the wild.
This size allows fish such as Severums, Geophagus, Discus, and Angelfish to feed comfortably while minimizing wasted food in the aquarium.
The result is a feeding experience that closely resembles the natural feeding patterns of these species.
Ideal for Popular South American Species
Severums
Severums are omnivorous cichlids that require a balanced diet containing both plant and animal proteins. The fine pellet structure allows them to feed easily while supporting healthy growth and coloration.
Geophagus
These fascinating sand-sifting cichlids constantly search for tiny food particles in the substrate. The small crumbled pellets of Teraa South American Extreme replicate the size of the micro-organisms they would naturally consume.
This encourages natural feeding behavior and ensures better digestion.
Discus
Discus are known for their sensitivity and selective feeding habits. A clean, easily digestible diet helps maintain water quality and supports the delicate digestive systems of these iconic fish.
The fine texture of Teraa South American Extreme allows discus to feed comfortably without struggling with large pellets.
Angelfish
Angelfish thrive on smaller foods that mimic insect larvae and plankton found in their natural habitats. The crumbled pellet structure ensures consistent feeding and reduces food waste in planted aquariums.
Supporting Gut Health and Feed Acceptance
All Teraa diets are enhanced with garlic extracts and beneficial probiotics.
Garlic has long been used in aquaculture for improving feed acceptance and supporting fish vitality. Many aquarium fish are naturally attracted to its aroma, making feeding more consistent even with selective species.
Probiotics help maintain a healthy gut environment by supporting beneficial bacteria that assist in nutrient digestion and absorption. This leads to better feed utilization, stronger immunity, and improved overall health.
Cleaner Feeding for Healthier Aquariums
In addition to providing balanced nutrition, the fine pellet structure helps reduce uneaten food in the aquarium.
Smaller pellets are consumed quickly, which means:
- less food waste
• better water quality
• reduced organic buildup
• healthier aquarium environment
This is particularly important for sensitive species such as Discus and Geophagus, which thrive in stable water conditions.
A Diet Designed for the Amazon
South American cichlids are some of the most captivating fish in the aquarium hobby. Their beauty and behavior reflect the rich ecosystems they come from.
By providing food that respects their natural feeding patterns—small prey, balanced nutrition, and digestible ingredients—aquarists can ensure their fish remain vibrant, active, and healthy.
With carefully designed pellet size, balanced nutrition, and gut-supporting ingredients such as garlic and probiotics, Teraa South American Extreme offers a feeding solution tailored for the unique needs of these iconic Amazonian cichlids.

