Thursday, July 31

Bloodfin Tetra | Freshwater Aquarium Fish

The bloodfin tetra (Aphyocharax anisitsi) is a popular freshwater aquarium fish which belongs to the family Characidae under Order Characiformes of Class Actinopterygii. It is a species of characin from the Paraná River basin in South America. The bloodfin tetra is also known as True Bloodfin, Glass Bloodfin and Red Finned Tetra.

bloodfin tetra

The bloodfin tetra is an excellent community species that grows up to 5.5 cm in length and can live up to 10 years. Its notable feature (as the name suggest) is the blood-red colouration of the tail, dorsal, anal and adipose fin, while the body is silver in color. The bloodfin tetra has a slender and elongated body with small mouth. Body is silver in color and it is easily recognized due to their colorful fins.

It is an omnivore and in wild condition, it feeds chiefly on crustaceans, worms and small insects. The male bloodfin tetra is a bit more colorful than the female and it has a small hook on the anal fin.

Quick fact sheet of Bloodfin Tetra
Scientific/ Binomial name: Aphyocharax anisitsi (C. H. Eigenmann & C. H. Kennedy, 1903)
Kingdom:          Animalia
Family:  Characidae
Kingdom:          Animalia
Phylum:            Chordata
Class:   Actinopterygii
Order:   Characiformes
Family:  Characidae 
Subfamily:         Aphyocharacinae
Genus:  Aphyocharax
Size Range:       up to 5.5 cm in length
Diet:     Omnivore
Tank Size:         10+ gallons
Tank Set-up:     Densely planted
Tank region:      It swims surface and Middle layer
Temperature:    64.5 – 82.5°F
Carbonate Alkalinity (dKH):       30
Carbonate Hardness (dKH):      4-12
Water pH:         6-8
Origin:  Argentina and Rio Parana
Temperament:   Peaceful
Care Level:       Easy
Habitat: South America river basins
Lifespan:           5 to 8 years
Reproduction:    Egg layers
Breeding:          The Bloodfin tetra is also easy to breed in captivity.
Water Movement:         Slow to Medium

Aquarium care / Bloodfin Tetra Care: The bloodfin tetra is a great choice for the trainee aquarium hobbyist due to their peaceful behavior and easy care level.

Bloodfin tetras are typically kept in schools of five or more. They swim mainly in the upper and middle water layers and are highly sociable fishes, mixing well with other types of tetras and tropical fish in general, so are often kept in a community tank. Many aquarists use a blue background in the aquarium to bring out the colors of their bloodfin tetras. However, they will tend to nip at the fins of fish with long, wavy fins, such as angelfish or guppies. Bloodfin tetras have also been kept in cold-water tanks, provided the temperature does not drop below room temperature.

It requires 10 gallons or larger aquarium for 6 or more tetras of same size. Tetras are adapted to soft and slightly acidic water which is essential for breeding. The aquarium should have good water quality and suitable water temperature and pH that range from 64.5 – 82.5°F and 6-8 respectively.
bloodfin tetra

Feeding/Diet: It is an omnivore fish. In captive condition it should be fed a variety of diet such as brine shrimp, high quality flakes, frozen or freeze dried blood worms, glass worm, live Bloodworms, Micro pellet food, Daphnia and tubifex.

Breeding: The tetra often spawns spontaneously. At the time of spawning it jumps above the surface of the water and releases the eggs in the water. The eggs, being heavy, fall to the floor of the tank or water body. The female deposits 300–500 eggs.

Sunday, July 13

Bubble Eye Goldfish

The Bubble Eye is a small variety of fancy goldfish with upward pointing eyes that are accompanied by two large fluid-filled sacs. It is a dorsal-less fish, and good specimens will have a clean back and eye bubbles well matched for color and size.

Bubble Eye Goldfish

The Bubble Eye normally has an evenly curved back that lacks a fin. The pair of large pouches of skin attached under its eyes jiggle as it swims. Bubble Eyes have metallic scales and they are similar to the celestial eye goldfish. They normally grow up to 3 to 4 inches in length.

Black Moor Goldfish | Black Moor Care

The Black moor is a telescope-eyed variety of fancy goldfish that has a characteristic pair of protruding eyes. It is also referred to as popeye, telescope, kuro demekin in Japan and dragon-eye in China.

Black Moor Goldfish

Black moor goldfish are popular because they are hardy fish and because their black color sets them apart from the more common gold color. Goldfish are typically easy to care for. Black moors in particular are able to withstand a wide variety of temperatures. They do well with other fancy goldfish varieties.

Common Goldfish | Common Goldfish care

The common goldfish is the simplest variation of all goldfish breeds and is the fish that most resembles its carp ancestors.

Common goldfish or hibuna are a type of goldfish with no other modifications from their ancestors other than their color. Most varieties of fancy goldfish were derived from this simple breed. Common goldfish come in a variety of colors including red, orange/gold, white, black and yellow or "lemon" goldfish.

The common goldfish is differing only in color from their closest relative, the Prussian carp. Common goldfish come in a variety of colors including red, orange/gold, white, black and yellow or 'lemon' goldfish.

Common goldfish are social animals that prefer living in groups. They are able to interact with any fish belonging to the same species. With provision of adequate care and attention, common goldfish can become tame. Once familiar with the face of its owner, swimming towards the fish keeper during feeding time can be observed and hand-feeding becomes possible.

Given adequate space and food, common goldfish will spawn quite readily and prolifically. In fact, it is quite ordinary for common goldfish to overpopulate a pond within a few months of being introduced!

Goldfish | Gold fish

Goldfish are small freshwater ornamental fish that are commonly kept in aquariums and ponds. The goldfish (Carassius auratus auratus) is a freshwater fish in the family Cyprinidae of order Cypriniformes. The fish was one of the earliest fish to be domesticated.


A relatively small member of the carp family, the goldfish is a domesticated version of a less-colorful carp (Carassius auratus) native to East Asia. The fish was first domesticated in China more than a thousand years ago, and several distinct breeds have since been developed. Goldfish breeds vary greatly in size, body shape, fin configuration and coloration (various combinations of white, yellow, orange, red, brown, and black are known).

Goldfish are rewarding pets to have. Their proper care, however, is not always taken into consideration, and here I have only just begun to understand the best ways to make these beautiful fish thrive. If you're looking to breed goldfish, have one as a pet, or are simply curious about what it might be like, I describe here how to make this pet fish happy and healthy! Keep in touch and follow the advice…

  1. Tank Requirements and Care:
    1. Get a large enough tank: The minimal tank size for one goldfish is 30 US gallons and you will need to add 10 U.S. gallons onto that for each additional goldfish.
    2. Use gravel that won't get stuck in your fish's throat: Use either large rocks or very small gravel for this lovely pet.
    3. Make sure your tank has some scenery and light: Goldfish don't require light, light is only for seeing the fish better and making its colors "pop". Like Keep your aquarium lit for around 8-12 hours each day.
    4. Rig up a water filter: Goldfish need a filter. A water filter should take care of the breaking down of the fish’s waste by beneficial bacteria; the trapping of larger particles such as fish waste or excess fish food; and the removal of odors, discolorations and other organics by carbon or mineral absorption.
    5. Go through at least one fish-less cycle before introducing your goldfish: A fish-less cycle involves adding ammonia to a tank and keeping track of the nitrate levels to make sure the water is safe for your goldfish to live in.
  2. Upkeep and Feeding:
    1. Add your fish: Hopefully, if you have more than one goldfish in your tank, your goldfish are all the same type. Unfortunately, goldfish are known to eat other, smaller fish, and can overeat, keeping food from their peers.
    2. Add your fish: Perform a 25% up to 90% water change weekly assuming you have stocked your tank properly.
    3. Clean the aquarium at least once every week, even if it doesn't look dirty: Goldfish produce waste that even your water filter won't be able to zap. A clean tank means happy, healthy goldfish. And a happy, healthy goldfish can live for decades!
    4. Measure for ammonia, nitrite, and pH: Dear fish lover remember that, test you did before you added your precious little fishes? You gotta keep that up already! Ammonia and nitrite levels should be at 0. A range of pH 6.5-8.25 is fine.
    5. Feed your fish 1-2 times daily: My friends be careful not to overfeed them, only feed them what they can eat in a minute, the label on the food is wrong. Goldfish can easily overeat and can die. Underfeeding is always preferable to overfeeding.
    6. Turn off the light and let them get some sleep: They don't have eyelids and they don't really stop swimming, but their bodies sort of hibernate. You can tell when you notice a slight change in color and reduced activity.
    7. Let the water temperature change as the seasons change: Goldfish don't like temperatures over 75°F (24°C), but they appear to like seasonal changes where the temperature dips to the high 50s or 60s (15-20°C) in the winter.
  3. Dealing with Potential Problems:
    1. Monitor the oxygen level in the tank: If you notice your goldfish are congregating to the surface, odds are there isn't enough in the water. But good news! Oxygen levels will rise with a temperature reduction. So lower the temperature or get your aquarium out of the sun.
    2. Fix cloudy aquarium water: Sometimes even when we put forth our best efforts, things still go a bit awry. Water can turn yellow, green, or even white. If you notice it straight away, it's not a big deal. But do get to clean your tank!
    3. Watch for goldfish disease ich: One of the most common goldfish diseases is Ich -- where the fish get little white spots on their bodies and fins and have difficulty breathing. It's a parasite that's totally curable.
    4. Monitor for Flukes: Another parasite that's a common culprit is Flukes. If infected, your fish will scratch against surfaces, develop outer mucus, redden slightly, and possibly get a swollen belly.
    5. Look for swim bladder disease: This one's pretty easy to identify, as your fish will be swimming sideways or even upside-down. You'd think he was up in fishy heaven, but no such luck. But there is luck in that it's not contagious and it can be readily fixed.
    6. If a fish has died, take the proper measures: First things first, dispose of your fish in a way that won't stink up the house. You can bury it, or, if you feel so inclined, throw it in the compost heap. Do not flush the fish down the toilet! Grab it from the tank with a plastic bag around your hands, invert the bag, and tie it up. How you clean your aquarium depends on your situation.
Varieties of domesticated goldfish: Selective breeding over centuries has produced several color variations, some of them far removed from the "golden" color of the originally domesticated fish. There are also different body shapes, fin and eye configurations. Currently, there are about 300 breeds recognized in China. The vast majority of goldfish breeds today originated from China. Some of the main varieties are given bellow: 
  • Common goldfish
  • Black Moor
  • Bubble Eye
  • Celestial Eye
  • Comet (goldfish)
  • Fantail (goldfish)
  • Lionhead (goldfish)
  • Oranda
  • Pearlscale
  • Pompom (goldfish)
  • Ryukin
  • Shubunkin
  • Telescope eye
  • Ranchu
  • Panda Moor
  • Veiltail
  • Butterfly tail (goldfish)
  • Meteor goldfish
  • Lionchu
  • Egg-fish goldfish
  • Shukin
  • Curled-gill goldfish
  • Tamasaba        
  • Tosakin 
Information sources: