Tropical Fish Secrets
Aquarists have long known that vascular plants, while actively growing, remove pollutants from aquarium water. This is, in fact, the oldest form of aquarium filtration. Displays of tropical fish were created during the Victorian era, for example, in enormous planted aquariums, long before the advent of the kinds of equipment so familiar to aquarists today. Dutch-style planted freshwater aquariums may have inspired the aquascapes of Smit's Dutch-style minireefs, with their lush growths of seaweeds.
The vast majority of marine fish sold by aquarium dealers are native to warm, tropical coral reefs. Their brilliant colors, unique body shapes, and animated behavior make these fish preferred saltwater tank inhabitants. In this chapter, we'll look at the various families of fish that commonly inhabit coral reefs and whose members may be available for your tropical fish-only marine aquarium.
Two things surprise most people who come into contact with Tropica Aquarium Plants for the first time. Nobody expects to find the world's leading producer of tropical aquarium plants in Denmark - a cold, windy country half a world away from the humid heat of the rain forest. And even fewer are prepared for the unique interplay between the latest technology and the committed, loving care that forms the basis for Tropica's uncompromising quality. Tropica is the preferred brand name in tropical aquarium plants in countries throughout the world. This places us under an obligation. So, in collaboration with the carriers we use, we have built up a rapid, efficient distribution system that is absolutely decisive when dealing with living plants. Together, we have organised a control and service system that minimizes the risk of faulty deliveries.
If you plan to be a tropical fish hobbyist for some time, it is inevitable that one of your fish will become infected with some kind of disease. Marine tropical fish are subject to all kind of maladies. Pathogenic organisms, including parasites, bacteria, viruses, and fungi, are present in all aquariums. Many are introduced with new fish and some are highly contagious. However, disease only breaks out if the resistance of your fish is diminished. Poor living conditions weaken your fish, cause chronic stress, and ultimately lower the fish's resistance. That is when your fish are most vulnerable to disease.
The main features of the TROPICA PLANT BOOK are a wealth of beautiful water-colours and clear, up-to-date information about 150 different tropical aquarium plants. For this reason alone, the plant book is an indispensable accessory for aquarium experts and novices alike.There is also enough room for a range of good tips and guidelines on plants, algae and aquarium layout in the 100 pages of the plant catalogue. Finally, the plant book tells the story of Tropica Aquarium Plants - the world's leading supplier of tropical aquarium plants.
White spot disease The most common disease of freshwater tropical fish is infection of the skin by Ichthyophthirius multifilis. The eh parasite is a ciliated protozoan, ubiquitous in water, that causes epidemics when fishes are stressed by cold temperatures or close contact with other heavily infected fish. Ich occurs in all aquariums and remains dormant until the fish are stressed or a new fish is introduced to the tank. Fish that recover from ich seldom become seriously infested again, but can be carriers.
The metabolic functions of sea anemones work within a range of temperatures. Exposure to temperatures beyond this range will injure or kill the anemone in a very short period of time. In this book we describe the tropical sea anemones commonly kept in aquaria, but we have also included a couple of subtropical temperate species because they sometimes end up for sale to aquarists keeping tropical aquariums. In general, tropical species suffer if the temperature falls below 20 C (68 F) or rises above 31 C (87 F), although there can be exceptions. Ideal temperature (in aquariums) for most tropical species is about 24 C (75 F). Temperate species can also survive at 24 C (75 F), but are healthier at 20 C (68 F), just outside the range for tropical species. Temperature affects the function of enzymes that are involved in metabolic processes such as digestion of food, tissue maintenance, and detoxification of superoxide radicals produced during photosynthesis. The symbiosis with zooxanthellae...
Many breeders maintain microworm cultures as a supplemental live food for angelfish (and other tropical fish) fry. Microworms are readily cultured in small covered plastic containers using dried baby food as a food base. Dried Gerber or Pablum flakes are mixed with tap water and a thin paste is spread onto the bottom of a butter or margarine tub to a depth of a half inch. Dried baker's yeast (a live yeast) is sprinkled on top or mixed with the paste. A starter culture of microworms is added to the paste-yeast mixture. The seeded culture is covered with a loose-fitting lid that allows carbon dioxide gas to escape and fresh air to enter. The microworms feed on the yeast, which feed on the baby food. After 24 hours, the yeast and microworms have multiplied profusely.
There is no substitute among tropical fish breeders for newly hatched live brine shrimp, otherwise called nauplii. Brine shrimp (Artemia) are small ('A inch 1 cm ) crustaceans that live in desert ponds and lakes with high sodium, calcium, and or magnesium salt content, where they feed on salt-tolerant blue-green eyanobacteria and algae, and in turn are fed upon by birds. Few other creatures live in salt ponds. In California and elsewhere, seawater is trapped in ponds for drying in the process of making commercial salt, and brine shrimp grow here too. The eggs of Artemia float to the surface of these saline waters and collect in windrows on the lee shores, where they are collected, cleaned, and packaged for the aquaculture market, with about 5 percent diverted to the tropical fish market. These eggs are vacuum canned and may remain viable for years in suspended animation, especially if the cans are stored in a freezer.
A tropical fish beginner often starts with a 10-gallon (38-L) aquarium, but angelfish do better in tanks of at least 20 gallons (76 L). Height helps them avoid dragging their long anal and filamentous pelvic fins on the gravel, which leads to erosion of the skin, cuts, and infection. Show tanks (much higher than wide) provide the greatest height per unit volume, but that extra height requires more intense lighting to reach down to the rooted plants. The community tank may be equipped with an undergravel filter and Vh to 2 inches (2 pounds per gallon) 4 to 5 cm (1 kg per 4 L) of medium grade aquarium gravel. The gravel provides root space medium for plants, but has no other value and is a refuge for the accumulation of fecal wastes and dead plant debris. Tanks with rocks, gravel, plants, and other structures are difficult to keep clean.
Elodea canadensis is very similar in appearance to Egeria densa, and often sold as such, but does not tolerate warmer water as well as E. densa. Use it in groups of five or more for the best display. In good conditions, the plant will grow rapidly and may need regular pruning. Cutting will also result in the production of side shoots, creating a denser, bushier display. The plant is a good coldwater and pond subject in tropical aquariums it may become weak over time. An adaptable specimen with no special requirements.
Virtually all aquarium dealers stock feeder goldfish. They are sold by the dozen and keep well for a week or so in a small, aerated container. Ten gallons of water accommodates about one dozen. Instead of a glass tank, you can use a plastic trash can outfitted with an airstone. Goldfish do fine in cold water and can be kept outside year round, as long as the water does not freeze. If you only purchase, let's say, a dozen a week, change the water between batches of goldfish. Unfortunately, only large, predatory tropical fish will consume them, so feeder goldfish are not for every aquarist. Fill an empty wide-mouth quart jar with water up to the shoulder and add two tablespoons (about an ounce, or thirty grams) of synthetic seawater mix. (Seawater mix is available wherever saltwater aquariums are sold.) Drop in an airstone and connect it to a pump. Aerate the water vigorously. You will want to locate your brine shrimp hatchery where the salt spray will do no harm, as it is impossible to...