Pearl Danio (Danio albolineatus)
Bring vibrant movement and color to your aquarium with the Pearl Danio. Known for its shimmering pearl-like body and energetic swimming, this peaceful freshwater fish is perfect for beginner and experienced aquarists alike.
Key Features
Beautiful iridescent pearl and blue coloration
Peaceful community fish
Very active and entertaining to watch
Hardy and easy to care for
Care Information
Size: Up to 6 cm (2.5 inches)
Temperature: 20–26°C (68–78°F)
pH: 6.5–7.5
Tank size: Minimum 40 liters (10 gallons)
Diet: Flake food, micro pellets, brine shrimp, and small live foods
BehaviorPearl Danios are schooling fish and should be kept in groups of at least 5–6. They are very active swimmers and do best in aquariums with open swimming space.
Why Buy Pearl Danio?These fish are perfect for community tanks and add constant motion and sparkle to any aquarium. Their hardy nature makes them ideal for beginners starting their first aquarium.
The GMO Widow Tetra is a genetically engineered freshwater fish designed for aquariums. Its aesthetic and biological modifications make it both visually striking and resilient for home aquarists.
Appearance
Body Color: Deep black, inspired by the black widow spider.
Markings: Vibrant red spots or streaks on the tail and dorsal fins, reminiscent of a widow’s hourglass pattern.
Glow/Fluorescence: Certain areas (like fins or lateral stripes) may fluoresce under LED or blue aquarium lighting.
Size: Typically 1.5–2 inches (4–5 cm), maintaining the small, schooling nature of traditional tetras.
Behavior and Temperament
Schooling Fish: Prefers to swim in groups of 6 or more.
Peaceful Yet Bold: Compatible with many community fish but stands out due to its unique color patterns.
Activity: Active swimmers, enjoy mid-to-upper levels of the tank.
Genetic Modifications
Color Enhancement: Red-black contrast with glowing fins for striking aquarium display.
Disease Resistance: Genetically engineered to withstand common bacterial and fungal infections.
Environmental Adaptability: Can tolerate a wider range of pH and temperature, making it more suitable for diverse home aquariums.
Controlled Growth: Maintains small size for standard tanks without overpopulating.
Care Requirements
Tank Size: Minimum 20 gallons for a small school.
Water Conditions: Temperature 72–80°F (22–27°C), pH 6.5–7.5.
Diet: Omnivorous; accepts flakes, frozen, and live foods.
Lighting: Blue or LED lighting enhances fluorescent markings.
Congo Tetra
Scientific Name: Phenacogrammus interruptus
Family: Alestidae (African Characins)
Origin: Congo River Basin, Central Africa
Size: 3 to 3.5 inches (7.5 to 9 cm); males may grow larger than females
Lifespan: 4 to 5 years (can live longer with excellent care)
🌈 Appearance
Males display iridescent colors—blue, violet, green, and orange—especially under good lighting.
Flowing, long fins with white edges are a hallmark of mature males.
Females are usually smaller and less colorful but still attractive.
🧠 Behavior and Temperament
Peaceful, schooling fish.
Best kept in groups of 6 or more to prevent fin nipping and stress.
Great for community tanks with other non-aggressive fish.
🏡 Tank Requirements
Tank Size: Minimum 30 gallons (for a school)
Water Temperature: 73–82°F (23–28°C)
pH: 6.0–7.5
Water Hardness: Soft to moderately hard (3–18 dGH)
Decor: Heavily planted with open swimming areas, dim lighting to mimic natural habitat
🍽️ Diet
Omnivorous: Accepts flakes, pellets, live and frozen foods.
A varied diet enhances their coloration—offer brine shrimp, daphnia, and bloodworms.
🐣 Breeding
Can be bred in captivity, but requires separate breeding tank.
Soft, acidic water and fine-leaved plants or spawning mops help encourage spawning.
Eggs are scattered and should be protected from adult fish, as they may eat them.
Telescope Eye Black Moor
It’s a variety of the telescope eye goldfish (a goldfish with big protruding eyes).
The Black Moor is simply the black-colored version of that type.
Scientific name: Carassius auratus (same as all goldfish).
Key features
1. Telescope eyes
The most distinctive trait: large, bulging eyes that stick out from the head.
These develop as the fish grows.
2. Black coloration
Deep velvet-like black scales (can sometimes fade to grey/orange over time).
3. Body shape
Round, egg-shaped body
Long flowing fins and a double tail
4. Poor eyesight
Because of their eye shape, they don’t see well and are slow swimmers.
Size & lifespan
Size: about 10–25 cm (4–10 inches)
Lifespan: 10–25 years with proper care
Origin
First bred in China hundreds of years ago through selective breeding.
Care basics
Freshwater fish (aquarium or pond)
Temperature: around 18–25°C
Diet: pellets, flakes, plus treats like worms or shrimp
Best kept with other slow, gentle goldfish (they struggle to compete for food)
Important things to know
Their eyes are very delicate and can get injured easily
Avoid sharp decorations in the tank
Because they swim slowly, faster fish can outcompete them for food
Why people like them
Unique “cute” look with big eyes
Calm and friendly temperament
Good for beginners compared to some other fancy goldfish
Golden Severum
Scientific Name: Heros severus (Gold/Golden morph)
Common Name: Golden Severum, Gold Severum
Family: Cichlidae
Origin: South America (Amazon Basin)
Size: 6–8 inches (15–20 cm), sometimes up to 10 inches
Lifespan: 5–10 years (with proper care)
🌟 Appearance
Vibrant golden-yellow body with subtle orange hues.
Rounded body shape, long fins.
Eyes may appear reddish.
Some may show faint vertical bars or iridescent spots.
🧠 Temperament and Behavior
Semi-aggressive, especially during breeding.
Generally more peaceful than many large cichlids.
Can be kept with other robust, similarly sized fish—but avoid small or overly aggressive tankmates.
Intelligent and personable; they often recognize and interact with their owners.
🏡 Tank Requirements
Tank Size: Minimum 55 gallons for one; 75+ gallons for a pair or community.
Water Temperature: 75–82°F (24–28°C)
pH: 6.0–7.5
Water Hardness: Soft to moderately hard (4–15 dGH)
Tank Setup:
Sand or fine gravel substrate.
Hiding spots: driftwood, caves, rocks.
Hardy plants (they may uproot or nibble softer plants).
Moderate filtration and regular water changes are essential.
🍽️ Diet
Omnivorous: Accepts high-quality pellets, flakes, and fresh or frozen foods.
Supplement with:
Vegetables (blanched spinach, peas, zucchini)
Protein (bloodworms, brine shrimp, krill)
A varied diet helps maintain vibrant color and health.
🐣 Breeding
Golden Severums form monogamous pairs.
They lay eggs on flat surfaces (rocks, broad leaves).
Both parents guard the eggs and fry.
Breeding can be aggressive—best done in a separate tank.
🤝 Tank Mates
Choose peaceful to semi-aggressive, similarly sized fish, such as:
Silver Dollars
Large Tetras (e.g., Congo Tetras)
Angelfish (with caution)
Plecos (bristlenose, rubberlip)
Other peaceful cichlids (e.g., Keyholes, Firemouths)
Albino Widow Tetra – A Striking Beauty for Your Aquarium
Add a touch of ethereal elegance to your tank with the Albino Widow Tetra. Known for its translucent, pale body and distinctive red eyes, this peaceful schooling fish is both captivating and easy to care for — making it perfect for beginners and experienced aquarists alike.
Key Features:
🌿 Peaceful & Community-Friendly: Ideal for mixed-species tanks
✨ Unique Appearance: Soft white coloring with stunning red eyes
📏 Size: Grows up to 5 cm in length
💧 Water Parameters: pH 6.0–7.5 | Temperature 22–28°C
🐠 Best Kept In Groups: Keep in schools of 6+ for optimal comfort and behavior
Whether you're building a serene aquascape or adding variety to your collection, the Albino Widow brings grace and tranquility to any setup.
Care Level: EasyDiet: Omnivore (enjoys flakes, micro pellets, and frozen foods)
A Black Common Pleco (15–16 cm) is a freshwater sucker-mouth catfish commonly kept as a bottom-dweller and algae grazer.
About the Black Common Pleco
Adult size: Depending on the exact species, Common Plecos can reach around 30–45+ cm, so they eventually need a large aquarium.
Temperament: Generally peaceful, although large adults can become territorial with other bottom-dwelling fish.
Activity: Mostly nocturnal. You may see it become much more active after the aquarium lights go off.
Diet: Although it eats algae and biofilm, it cannot live on algae alone. Provide sinking algae wafers, vegetables such as zucchini/cucumber, and other suitable pleco foods.
Aquarium: Provide driftwood, caves and hiding places. Strong filtration is recommended because larger plecos produce quite a lot of waste.
Water: They are adaptable but do best in stable, clean, well-filtered freshwater.
Tank mates: Usually suitable with peaceful community fish, provided the aquarium is large enough and there is adequate space for everyone.
Important for a 15–16 cm Pleco
At 15–16 cm, it is already a fairly substantial fish, but it is not its adult size. I would avoid putting one in a small aquarium simply because it currently fits. A Common Pleco is better suited to a large aquarium, particularly as it grows.
The Red Ryukin goldfish is a color variety of the fancy Ryukin goldfish, which itself is a selectively bred type of goldfish known for its dramatic body shape and ornamental appearance.
Key features
Color: Bright red to orange-red (sometimes deep crimson)
Body shape: Short, deep-bodied with a pronounced “hump” behind the head
Tail: Long, flowing double tail (often fan-shaped)
Size: Usually 15–20 cm (can grow larger in good conditions)
Care requirements
Tank size: At least 75–100 liters per fish (more space = healthier fish)
Water temperature: 18–22°C (cool-water species)
Filtration: Strong filter needed (they produce a lot of waste)
Water quality: Very important—ammonia/nitrite must be zero
Feeding
Sinking goldfish pellets (main diet)
Frozen/live foods: bloodworms, daphnia, brine shrimp
Vegetables: peas, zucchini, spinach (helps digestion)
Behavior
Peaceful and social
Best kept with other fancy goldfish (not fast or aggressive fish)
Not ideal for outdoor predators or mixed tropical tanks
Lifespan
With proper care: 10–15 years, sometimes longer
Malawi cichlids are famous for their bright colors, active behavior, and interesting social structures. While many species grow medium to large, there are smaller species that stay under 4 inches, perfect for moderately sized aquariums.
Key facts about small Malawi cichlids:
Origin: Lake Malawi, East Africa
Habitat: Rocky shores (Mbuna types) or open sandy areas (Haplochromis types)
Size: Small species typically 2–4 inches (5–10 cm)
Popular Small Malawi Cichlids
1. Mbuna (Rock-dwelling)
Examples:
Pseudotropheus demasoni – striking blue with black stripes, very territorial.
Labidochromis caeruleus “Electric Yellow” – bright yellow, hardy, peaceful compared to other Mbuna.
Tank Notes: Prefer rocky environments with caves; aggressive toward same species or similar colors.
2. Haplochromis (Open water/sand dwellers)
Examples:
Iodotropheus sprengerae (Rusty Cichlid) – orange and brown, peaceful, stays small.
Aulonocara species (Peacock cichlids) – some smaller variants under 4 inches; vibrant colors.
Tank Notes: Like more swimming space, moderate to calm community behavior.
Care Requirements
Tank Size: Minimum 30–40 gallons for a small group (5–6 fish).
Water Conditions: pH 7.8–8.6, temperature 75–82°F (24–28°C), hard water preferred.
Diet: High-quality cichlid pellets, occasional frozen or live food.
Behavior: Can be territorial; provide rocks/caves for hiding and territory.
LongfinLemon Blue Eye Ancistrus (Ancistrus sp.) – Bright Yellow Bristlenose Pleco
Add vibrant color and personality to your aquarium with the Lemon Blue Eye Ancistrus. This stunning Bristlenose Pleco variety, classified within the genus Ancistrus, is prized for its bright lemon-yellow body and striking blue eyes.
Compact, hardy, and peaceful, the Lemon Blue Eye Ancistrus is an excellent algae-eating addition to community aquariums.
Product Highlights
Bright lemon-yellow coloration – Stands out beautifully in planted and natural tanks
Distinct blue eyes – Unique and eye-catching feature
Excellent algae grazer – Helps maintain clean glass and décor
Compact adult size – Ideal for medium aquariums
Peaceful and hardy – Great for beginner and experienced aquarists
Size & Growth
Current Size: 1.5–3 inches (juvenile)
Adult Size: 4–5 inches
Recommended Tank Size: 30+ gallons
Unlike larger pleco species, Lemon Blue Eye Ancistrus remain manageable in size, making them perfect for long-term community setups.
Care Requirements
Water Temperature: 72–80°F
pH Range: 6.5–7.5
Diet: Algae, sinking algae wafers, spirulina pellets, blanched vegetables (zucchini, cucumber), and driftwood
Tank Setup: Provide caves, driftwood, and shaded hiding spaces
Males develop bristles on their faces as they mature, while females typically have smaller or no bristles.
Tank Mates
Compatible with:
Tetras
Rasboras
Corydoras
Gouramis
Other peaceful freshwater species
Avoid aggressive or highly territorial tank mates.
Why Buy From Aquatic Petssa?
At Aquatic Petssa, each Lemon Blue Eye Ancistrus is carefully selected and conditioned to ensure strong health, vibrant coloration, and smooth acclimation into your aquarium.
Oscar Cichlid
Scientific Name: Astronotus ocellatus
Common Names: Oscar, Tiger Oscar, Albino Oscar
Family: Cichlidae
Origin: South America – Amazon River basin
Size: 10–12 inches (25–30 cm), occasionally up to 14"
Lifespan: 10–15 years (with proper care)
🔥 Varieties
Variety
Appearance
Tiger Oscar
Dark body with bright orange-red patterns (tiger-like), very striking.
Albino Oscar
Pale white to yellowish body with red or orange markings; red/pink eyes.
🎨 Other Oscar morphs include Red Oscar, Lemon Oscar, and Veil Tail Oscar, but Tiger and Albino are among the most common.
🧠 Personality & Behavior
Highly intelligent, trainable (can be hand-fed, may recognize owners).
Can be aggressive or territorial, especially in confined spaces.
Need lots of space — they're messy and fast-growing.
Best kept solo, in pairs, or with carefully selected tank mates.
🏡 Tank Requirements
Tank Size:
55 gallons for 1 Oscar (minimum)
75–100+ gallons for 2 Oscars or with tankmates
Temperature: 74–81°F (23–27°C)
pH: 6.0–7.5
Hardness: Soft to moderate (3–15 dGH)
Tank Setup:
Sand or fine gravel substrate
Heavy-duty filtration (Oscars are messy eaters)
Hiding spots (rocks, driftwood), but they may rearrange decor
Live plants usually get uprooted or destroyed — use tough or fake plants
🍽️ Diet
Omnivorous:
High-quality cichlid pellets (main diet)
Frozen or live foods: bloodworms, krill, earthworms
Occasional vegetables: peas, spinach (blanched)
Avoid: feeder fish (risk of parasites), fatty meats
Feed 1–2 times daily in small portions to avoid water pollution.
🐣 Breeding
Oscars form monogamous pairs and lay eggs on flat surfaces.
Breeding in captivity is possible, but aggression increases during spawning.
Both parents will defend the eggs and fry.
🤝 Tank Mates (with Caution)
Choose tank mates that are:
Large enough not to be eaten
Tough enough to withstand mild aggression
Not overly aggressive themselves
Suitable tank mates:
Severum Cichlids
Silver Dollars
Large Plecos
Firemouths
Jack Dempseys (if tank is big enough)
