Are Panchax aggressive?

What is a tropical fish compatibility chart?

When you are new to the hobby of aquarium keeping it can get very confusing to figure out which fish species are compatible. Therefore a tropical fish compatibility chart can be very handy. The tropical fish compatibility chart shows you which freshwater fish and freshwater plants are compatible with each other.

What does Aplocheilus lineatus look like?

Aplocheilus lineatus is a gorgeous (and hardy) centerpiece fish that gets up to 4 inches (10 cm) long. The male is more colorful and has a brilliant yellow body with a blue-green sheen and orange edging on its tail and fins.

What is this tropical aquarium fish chart?

This tropical aquarium fish chart gives you a basic idea of which aquarium fish are compatible with other aquarium fish! This can be helpful when it comes to choosing your species of aquarium fish and deciding which other species and types will be compatible without the chance of disaster.

Are tropical fish and fresh fish compatible?

When considering the compatibility of tropical and fresh fish, it is not always clear cut which types will settle in well together.

How are the different types of fish on the chart determined?

Each fish type is placed on the chart and reference against another fish species. You look at the two species on the chart that are cross reference to see if the fish are compatible with each other. Some charts are more detailed than others.

Do tropical fish get along with other tropical fish?

Although the aquarium fish chart will be right most of the time, there are exceptions where some freshwater tropical species will get along with other incompatible species. This is highly dependable on which order they are added to the aquarium, the size of the aquarium and how often the tank is fed.

How many types of fish are there in the Order Agnatha?

1 Agnatha – jawless fish 2 Chrondrichthyes – cartilaginous fish 3 Osteichthyes – bony fish 4 Ray finned group 5 Lobe finned group

What phylum do fish belong to?

Fishes and the tetrapods belong to the subphylum Craniata. The remaining fishes and the tetrapods belong to the infraphylum Vertebrata. One order Myxiniformes, with one family, Myxinidae, and 70 species, 3 in Canada (one in Atlantic and 2 in Pacific).

Is the hagfish a sister group of the Gnathostomata?

Phylogenetic research in 1998 and 1999 supported the idea that the hagfish and the lampreys form a natural group, the Cyclostomata, that is a sister group of the Gnathostomata. The various fish groups account for more than half of vertebrate species.

What is the classification of Agnatha fish?

Classification. Agnatha are jawless fish. Lampreys and hagfish are in this class. Members of the agnatha class are probably the earliest vertebrates. Scientists have found fossils of agnathan species from the late Cambrian Period that occurred 500 million years ago. Members of this class of fish don’t have paired fins or a stomach.

What are the characteristics of Agnatha?

Agnatha. All living and most extinct Agnatha do not have an identifiable stomach or any appendages. Fertilization and development are both external. There is no parental care in the Agnatha class. The Agnatha are ectothermic or cold blooded, with a cartilaginous skeleton, and the heart contains 2 chambers.

Is a hagfish a Gnathostomata?

Hagfish are excluded from the subphylum Gnathostomata because of morphological characteristics including the Hagfish arched tongue. Hagfish embryos have characteristics of Gnathostomes and may be plesiomorphic, however these characteristics drastically change morphologically as the Hagfish matures.

Do Hagfish have vertebrae?

They are the only known living animals that have a skull but no vertebral column, although hagfish do have rudimentary vertebrae. Along with lampreys, hagfish are jawless; they are the sister group to jawed vertebrates, and living hagfish remain similar to hagfish from around 300 million years ago.

What is the phylum of Agnatha?

Jump to navigation Jump to search. Agnatha (Greek, “no jaws”) is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present (cyclostomes) and extinct (conodonts and ostracoderms) species.

What are Agnatha and Osteichthyes?

Class agnatha are the third group included in the common classification of fish. Following agnatha revolution we have cartilaginous or chondrichthyes (Chondrichthyes), such as rays, sawfish, electric rays and sharks. Then came bony fish (Osteichthyes), which are a group that includes all those species that have gills and bladder.

What are Agnatha and lampreys?

Lampreys and hagfish are in this class. Members of the agnatha class are probably the earliest vertebrates. Scientists have found fossils of agnathan species from the late Cambrian Period that occurred 500 million years ago. Members of this class of fish don’t have paired fins or a stomach.

What are Agnatha fish?

Agnatha are jawless fish. Lampreys and hagfish are in this class. Members of the agnatha class are probably the earliest vertebrates. Scientists have found fossils of agnathan species from the late Cambrian Period that occurred 500 million years ago.

Is Agnatha a conodont?

Jump to navigation Jump to search. Agnatha (Greek, “no jaws”) is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present (cyclostomes) and extinct (conodonts and ostracoderms) species.

What is an Agnatha fish?

According to Agnatha informations, Agnathae is a class of jawless fish. Common examples include lampreys, hagfish, and the gill-bearing Poraspidomorphi. Agnatha information reveals that members of this class are probably the earliest vertebrates on record.

Did agnathans have fins?

Although a minor element of modern marine fauna, agnathans were prominent among the early fish in the early Paleozoic. Two types of Early Cambrian animal apparently having fins, vertebrate musculature, and gills are known from the early Cambrian Maotianshan shales of China: Haikouichthys and Myllokunmingia.

Is Agnatha a cyclostome?

Agnatha is a superclass within the phylum Chordata. This group consists of cyclostomes (Lamprey and hagfish), that are still alive today, and extinct species, conodonts and ostracoderms. Class agnatha are the third group included in the common classification of fish.

What does Agnatha stand for?

Agnatha ( Ancient Greek ἀ-γνάθος “no jaws”) is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present ( cyclostomes) and extinct ( conodonts and ostracoderms) species. The group is sister to all vertebrates with jaws, known as gnathostomes. Recent molecular data,…

How do Agnatha fish differ from Osteichthyes fish?

How Do Agnatha Fish Differ From Osteichthyes Fish? The primary differentiating feature between these two groups is that osteichthyes have a jaw. Moreover osteichthyes have a skeleton made of bone, as opposed to cartilage which is found in Agnatha.

Is a hagfish an Agnatha?

The hagfish (Myxini) are another extant class of agnatha or jawless fish. Like lampreys, hagfish have a long circular body covered with a mucous-y layer. Their general appearance is very primitive. They do not have taste sensory organs, but do have receptive cells in their skin, as well as simple eyes.

What is the classification of Agnatha?

Agnatha is a group of jawless fish, of which there are only a few extant species. There are so many species that fit the characteristics that it was necessary to classify each organism into groups.

What is Agnatha (jawless fish)?

Agnatha are fish that have existed for over 470 million years. Although most agnatha are now extinct, some have found unique and interesting ways to survive. Agnatha or jawless fish can be found in waters all over the world, and they share few characteristics with other marine mammals. But, what is a jawless fish?