SPOTTED RAFAEL CATFISH

The black Spotted Raphael Catfish (Agamyxis pectinifrons) is a hardy and easy-to-care-for species that makes an ideal option for mid to large-sized freshwater and planted aquariums. Here’s a few quick facts about these vocal and friendly catfish:

• Native to the Amazon River basin in South America, they’ve been popular with aquarists for decades due to their beautiful marking and peaceful temperament.
• A member of the Doradidae or Thorny Catfish family, they are one of several species capable of “talking,” or producing croaks and clicks audible outside your aquarium.
• One of three nearly identical species of Raphael catfish, the Spotted can be distinguished from the Stripped (Platydoras costatus) and Southern Raphael (Platydoras armatulus) by their capture location. All three species may be sold under the same common name
• Scientific Name

Appearance, Size And Lifespan 

The Spotted Raphael has an arrow-shaped, cylindrical body with a prominent head and flattened abdomen. Their wide mouth is surrounded by three pairs of delicate barbels. Armored with a thick, tough scaleless skin, they also have an upright spiny dorsal fin, spines on their pectoral fins and bony scutes along their lateral line:

• Their abdomen is pale, and they have irregular, random spots on their bodies and fins that vary from a bright white to a vivid yellow hue. 
• They make their “talking” sounds by rubbing their pectoral spines against the socket of the fin, and via a special muscle that connects their skull and swim bladder internally.
• But their scutes and pectoral/dorsal spines can also get tangled in fishnets and may even pierce your skin, so it’s best to avoid direct handling and use a glass or plastic container instead of fish net for transferring them.

Behavior And Temperament 

Talking spotted catfish are peaceful and somewhat shy community fish who spend the daylight hours hiding in your substrate or squeezed into crevices amid the rocks and driftwood in your tank. Since they are nocturnal, they rarely emerge under bright lights and are best observed in a deeply shaded tank or by using a moonlight.

How To Care For Your Spotted Raphael Catfish

It’s not difficult to care for these spotted catfish, since they are very hardy and tolerate a wide range of conditions. Let’s take a look at their ideal aquarium set-up and community!

Tank Set-up And Habitat Requirements

Spotted catfish may hide during the day, but once the lights go off they are quite energetic in their activities. Here are the key requirements to having a healthy group of catfish in your tank:

Aquarium Size

While they aren’t very large, these catfish need plenty of room for hiding and scavenging food. They’re not suitable for Nano tanks, however, since you’ll require at least a 35-gallon tank for a single catfish. If you’d like to keep a group of 3 to 5 catfish you’ll need a tank of 55 to 75 gallons.

Water And Temperature Parameters

Spotted catfish do well at temperatures from 68 to 79°F, so you may or may not need a heater for your tank. They prefer slightly acidic water from pH 5.8 to 7.5 but are not overly sensitive to water hardness and tolerate 2 to 20 dGH.

Filtration, Aeration And Lighting

Spotted catfish prefer well filtered and oxygenated water with a minimal rate of flow. You may need to baffle your filter to prevent strong currents in the lower parts of your tank. An air stone and pump is helpful for maintaining high oxygen levels. They don’t like bright lights and prefer tanks shaded with decor or floating plants. The best way to observe your catfish at night is with a blue LED or moonlight.

Substrate, Plants And Decorations

It’s best to use soft aquatic sand, soil or fine gravel as substrate in your tank to prevent your catfish from being injured by harsh gravel. Provide your catfish with plenty of large rocks, driftwood and branches to hide in during the day. Dense groupings of live plants can also provide shelter for juveniles, and the adults won’t damage or eat them.

Maintenance 

Spotted catfish are sensitive to aquarium waste products like ammonia, so changing the water on schedule and keeping your filter maintained and filled with fresh filter media is crucial to their health. Monthly water changes are usually sufficient for these catfish in tanks 55 to 75 gallons, although smaller tanks may need them more often.

Feeding

Talking Spotted catfish are omnivores and are not picky about their diet, and as scavengers they’ll help keep your tank clean of food scraps. To avoid overfeeding and problems with obesity, it’s best to feed them once a day near dusk:

• Drop some sinking catfish or spirulina pellets near their hiding hole and you can train them to come out for food! 
• You can also offer them treats like brine shrimp, bloodworms, crustacean or insect eggs a couple of times a week.

Compatibility And Tank Mates

While you can certainly keep your catfish in a single-species tank, their peaceful nature makes them an excellent option for midsize to large community aquariums. Avoid keeping your catfish with fish, shrimp or snails small enough to be a snack. Consider an Amazon-themed tank with medium to large fish like: 

• Tetras
• Gouramis
• Other friendly catfish like the Pictus Cat

Breeding

It’s thought that the talking spotted catfish is a bubble-nest builder, but we don’t know much about their reproduction behavior. Captive-bred fish are rarely available and have only been reported by breeders using artificial hormones to induce spawning.

Spotted Raphael Catfish Aquarium Set-up: Supplies And Equipment List

For a community tank that includes a group of 3 talking spotted catfish, you’ll need:

• 55-gallon or larger aquarium with a cover or lid
• Aquatic sand, soil or fine gravel substrate
• Filter, air stone and air pump
• Decor such as rocks, driftwood branches or roots and live or plastic plants
• A bottle of water conditioner

To feed your catfish, you’ll need:

• Commercial sinking catfish pellets
• Spirulina pellets
• Treats such as brine shrimp, bloodworms, shrimp eggs or mosquito larvae

Optional but helpful equipment includes:

• Aquarium heater
• Moonlight or blue light for nighttime viewing