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Leopold’s Angelfish (Pterophyllum Leopoldi)

The leopold's angelfish, which belongs to the Pterophyllum Leopoldi genus and are the smallest freshwater angelfish, can easily be distinguished from other Pterophyllum species by two distinctive characteristics: a large black spot between the dorsal spine and dorsal fins, and an unnotched predorsal contour.

Ghost Angelfish (Pterophyllum Scalare)

With characteristics closely resembling the albino angelfish, it does not have pink eyes but rather a prominent black stripe running across its eyes, in some cases. Although they lack the body stripes that are present in wild silver angelfish, ghost angelfish have a similar complexion.

Blue Angelfish (Pterophyllum Scalare)

The rarest phenotype is found in blue angelfish, a recessive mutation that is quite recent and whose origins are unknown. It is made up of two recessive genes and enhances iridescence in all strains while significantly reducing the storage of carotenoid pigments.

Blue Leopard Angelfish (Pterophyllum Scalare)

As a blue leopard angelfish matures and reaches adulthood, their markings continuously grow closer together. Additionally, they are one of Pterophyllum Scalare's rarest phenotypes and might be hard to locate in stores; if you do, don't hesitate!

Halfback Angelfish (Pterophyllum Scalare)

In contrast to smokey angelfish, halfback angelfish have a dark black hue in the back half of the fish with a distinct border. Two recessive half-black genes are also present in this phenotype, which makes them rather uncommon.

Gold Angelfish (Pterophyllum Scalare)

In contrast to the gold marble angelfish, gold angelfish display an entirely white with an orange and yellow hue, usually far more noticeable in color are their head and dorsal fin. Due to the recessive nature of the gold gene, two copies are necessary for this phenotype.

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Purple Harlequin Rasbora (Trigonostigma Heteromorpha)

Since their introduction in the early 1900s, the purple harlequin rasbora has become the most common species of rasbora kept within the aquarium hobby. Their scientific name Heteromorpha actually refers to its rather distinctive color pattern, which is undoubtedly the reason this species gained so much popularity.

Harlequin Rasbora (Trigonostigma Heteromorpha)

Since their introduction in the early 1900s, the harlequin rasbora has become the most common species of rasbora kept within the aquarium hobby. Their scientific name Heteromorpha actually refers to its rather distinctive color pattern, which is undoubtedly the reason this species gained so much popularity.

Bandit Corydoras (Corydoras Metae)

Due to their light-colored scales with black markings, bandit corydoras often look phenomenal in aquariums with darker substrates. They are also a species of catfish that are frequently active, particularly at feeding time and in the evenings.

Pictus Catfish (Pimelodus Pictus)

Out of the 29 species within the Pimelodus genus, pictus catfish are the most popular species found in the aquarium hobby due to their smaller size and appealing display of colors. But don't be fooled; they are extremely active during low-light conditions, requiring a large enough tank to comfortably accommodate them.

Aquarium KH: How to Safely Lower or Raise KH Levels

Aquarium KH levels, or rather alkalinity, control the water's ability to buffer acids that are constantly created by different reactions taking place inside an aquarium. Knowing the GH, KH, and pH levels of your tap water will help you keep healthy fish, plants, invertebrates, and corals.

Culturing Infusoria for Newly Hatched Fish Fry

Culturing infusoria is common practice for most aquarists attempting to breed small species of fish, which is used to provide a source of live food for a newly hatched fish fry that is typically too small to feed on commercially available foods.

How to Cycle an Aquarium

Every body of water has millions of microorganisms that break down organic matter and the numerous compounds that are generated during the process. These compounds are then further broken down and recycled in an endless cycle. A process that we must recreate when figuring out how to cycle an aquarium.

Aquarium pH: How to Safely Lower or Raise pH Levels

To determine the right method to adjust your aquarium pH levels, you will need to fully understand what can cause an increase and decrease in pH. Otherwise, you may end up fighting an uphill battle.

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