Harlequin fish or Rasbora Heteromorpha groups come from Thailand, Sumatra, and the Malayas. The fish are smaller breeds, which grow around 1 ¾ inches in size. Harlequin fish is one of the aquarium keeper’s favorites, since the fish have colorful figures. The fish are shaped like wedges, which blue-black shades setoff its rosy pink and violet forms. Harlequin fish are easily trained; as well, the fish do well in communal tanks. The species however are beautiful formed and colored that residing in a sole tank could produce natural effects to your home area. The fish will dine on all foods, and prefers water conditions such as soft water, sensibly acid waters, and peaty waters. Harlequin fish are not much for breeding. The fish pair in well-conditioned waters, or peaty waters. The balance preferred is pH-6, pH-2, or hard water at 40-ppm. Harlequin fish mate while turned upside down at a leaf surface. The fish typically lay less than one hundred eggs, which are fry in one day. The Harlequin fish group is commonly referred to the Red Rasbora fish.

In addition to the Harlequin, is the Cobitidae family. This fish will help keep tanks clean by gnawing at algae. The scavengers are similar to Carps, in that the fish have teeth. This family of fish also has four barbel located in its upper jaw. The fish are akin to any European freshwater Cyprinids. Cyprinids are family to minnows and Carps, which the fish sometimes have round scales, softer fins, and toothless jaws. Spiny Loach is the family of Cobitidae. This fish composes bifid spines, which is located beneath the eyes. The bifid will erect from its folded, flat position if the fish is put to the test. Predatorily fish will not like the results produced by this fish in the event they decide to challenge the Spiny Loach. Spiny Loaches and Cobitidae fish tend to surface often to seek oxygen. The fish prefer to live in murky, mud-spattered waters. The murkiness and mud limits oxygen, which is why the fish surface often. Weather Fish is amongst the group of Spiny Loaches, which this fish will not adapt well to atmospheric situations, which cause stress.

The Loach fish include the group of Acanthophthalmus Semicinctus family. The fish come from the east parts of India and grow up to 3 ½ inches in size. The fish is popularly called the Half Band Coolie. The Coolie fish have bodies shaped like a snake, which the body covers yellow and black marks. You can find the sub-species of the Coolie family in the Kuhlii family. Kuhlii fish tend to fall into the Salmon category, since the fish may have pink bellies, as well as yellow and black marks. Coolie fish are communal tank fish, which have a peaceful nature. The tanks should be limited to plants, since this fish will hide in closed spaces. You should at deposits of compact decomposed organic debris at the bottom of the tank. (Peat) These fish tend to eat Tubifex and algae, which makes the fish a good cleaning system. As well, the fish will eat all foodstuffs. Coolie fish do not place a high demand on water condition, yet they tend to do well in moderate or neutral waters. The water temperature should remain at 78 degrees Fahrenheit.

In addition to the Coolie fish is the Clown Loach, Tiger Botia, Siluridae, and so on. Over the Internet, you will find a wide assortment of information related to freshwater fish, which include tropical fish, Coldwater fish, sea, or saltwater fish.