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PETRA-AQUA s.r.o. @UCalSuCa4XU248cQZzlew4UQ@youtube.com

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Youtube channel of Petra-Aqua company www.petra-aqua.com O


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in the future - u will be able to do some more stuff here,,,!! like pat catgirl- i mean um yeah... for now u can only see others's posts :c

PETRA-AQUA s.r.o.
Posted 1 month ago

Apteronotus albifrons, commonly known as the black Ghost knifefish, is a unique freshwater species native to the rivers and streams of South America. These elongated, graceful fish, with their striking black bodies and undulating fins, are often admired in aquariums for their curious behavior and nocturnal nature. Growing up to 50 cm (20 inches), they are known for their ability to navigate their surroundings using weak electrical impulses, which also helps them locate food in low-light conditions. With proper care, they can live for 10 to 15 years in captivity.


Black ghost knifefish thrive in well-maintained aquariums with soft, slightly acidic water. Ideal temperatures range from 23°C to 28°C (73°F to 82°F), with a pH of 6.5 to 7.5. A dimly lit tank with plenty of hiding places like driftwood, rocks, and plants is essential, as these fish are shy and prefer to stay out of bright light.


Apteronotus albifrons are generally peaceful but may be territorial with other knifefish or similarly shaped species. They do well in community tanks with non-aggressive fish of similar size. Breeding them in captivity is rare due to their complex needs, but they make a fascinating and relatively low-maintenance addition to a carefully managed tank, where their unique appearance and behaviors can be fully appreciated.

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PETRA-AQUA s.r.o.
Posted 1 month ago

Sewellia lineolata, commonly known as the reticulated hillstream loach, is a fascinating species native to the fast-flowing streams and rivers of Southeast Asia, particularly Vietnam and Laos.



BEHAVIOR:
Sewellia lineolata is a peaceful species that gets along well in community tanks with other non-aggressive fish. Suitable tank mates include small to medium-sized non-aggressive species that share similar water requirements, such as tetras, rasboras, and other loaches. They are shy and spend most of their time clinging to surfaces near the bottom of the tank.



TANK SETUP:
A well-decorated tank with plenty of smooth rocks, roots, and pebbles provides both hiding places and surfaces where algae and biofilm can grow, which they will naturally graze on. A sandy or fine gravel substrate is ideal. They need well-oxygenated water with a strong current, as they are adapted to life in fast-flowing streams. A powerful filter or additional powerheads can help simulate this environment. The ideal water temperature for these loaches ranges between 20°C and 24°C, with a pH level between 6.5 and 7.5. The water should be soft to moderately hard.



DIET:
In the wild, Sewellia lineolata feeds on biofilm, algae, and small invertebrates found on rocks and other surfaces. In the aquarium, they should be provided with a similar diet. Algae wafers, blanched vegetables like zucchini and spinach, and high-quality sinking pellets are excellent choices. Additionally, they will appreciate occasional feedings of live or frozen foods such as bloodworms, daphnia, or brine shrimp. It is important to ensure that food reaches the bottom of the tank, where these loaches spend most of their time.

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PETRA-AQUA s.r.o.
Posted 2 months ago

Pterophyllum altum, commonly known as the Altum Angelfish or Orinoco Angelfish, is a stunning species of freshwater fish native to the Orinoco River Basin in Venezuela and Colombia.


Altum Angelfish are easily distinguishable from other angelfish species by their tall, elongated bodies and sharply angled dorsal and anal fins. They can reach heights of up to 38 cm (15 inches) from the tip of the dorsal fin to the bottom of the anal fin. Their bodies are typically silver with vertical black stripes, and some specimens exhibit a copper or golden hue, adding to their allure.


In the wild, Pterophyllum altum inhabit slow-moving rivers and flooded forests, where the water is soft, slightly acidic, and warm. They are accustomed to densely vegetated environments with plenty of hiding spots, which is essential for their sense of security. Altums are schooling fish and thrive in groups, exhibiting a peaceful demeanor, although they can be territorial, especially during breeding.


Caring for Altum Angelfish in captivity can be challenging, primarily due to their specific water quality requirements. They need a large tank, at least 200 liters for a small group, with soft, acidic water (pH between 4.5 and 6.5) and temperatures ranging from 28°C to 30°C (82°F to 86°F). Regular water changes and proper filtration are crucial to maintaining optimal conditions. Additionally, providing plenty of plants and driftwood helps mimic their natural habitat, making them feel at ease.



Feeding Altums is relatively straightforward, as they are omnivorous. A diet consisting of high-quality flake or pellet food, supplemented with live or frozen foods like brine shrimp, bloodworms, and daphnia, keeps them healthy and vibrant.
#altumangelfish #pterophyllumaltum #altumangelfish

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PETRA-AQUA s.r.o.
Posted 7 months ago

Our current offer has already landed in your email inboxes, and we have prepared 3 good tips that you definitely shouldn't miss! 😉



The first tip, also a new addition to our assortment, is the Short Body Texas Cichlid. These vibrantly colored fish are available in sizes ranging from 5-7 cm, and you can find them in our stocklist under the code KG93. From our special betta splendens offer, we have selected the veiltail betta in the Nemo coloring (7436). And finally, the Cold Water Fish of the week is the Carassius auratus l.f. ryukin mix in size 5-6 cm, which you can find under the code CE50.

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PETRA-AQUA s.r.o.
Posted 11 months ago

It's Wednesday- it means our current offer for the 47th week is out now. And we've got a few tips from our special offer you shouldn't miss out on! 😉



To see all available items, visit our website➡️ www.petra-aqua.com/en/current-offer/

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