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2. Aquatic toxicology - Wikipedia

   en.wikipedia.org/wiki/Aquatic_toxicology

   The water is circulated through the test chamber continuously, similar to an aerated fish tank. This type of test is expensive and it is unclear whether or not the filter or aerator has an effect on the toxicant. Renewal. A renewal test also exposes the organism to the toxicant in a similar manner as the static test because it is in still water.

3. Freshwater aquarium - Wikipedia

   en.wikipedia.org/wiki/Freshwater_aquarium

   Other equipment includes a canopy or hood as an aquarium cover, an aquarium stand or base, lighting accessories, a heater, a thermometer, air pumps, filtration apparatus, airstones, fish food, a fish net, water conditioner, water quality testing kits, a siphon hose or gravel cleaner, and a bucket for water changes. When first starting an ...

4. List of freshwater aquarium fish species - Wikipedia

   en.wikipedia.org/wiki/List_of_freshwater...

   Many color and tail pattern varieties exist. They generally need a ratio of 1 male to 2 females or more. All guppies and mollies are hardy fish that tolerate lower oxygen levels and temperatures than most aquarium fish, give birth to live young, and readily breed in home tanks. [58] can live in full sea water [59] 66 °F - 84 °F (19 °C - 29 °C)

5. List of aquarium diseases - Wikipedia

   en.wikipedia.org/wiki/List_of_aquarium_diseases

   The following is a list of aquarium diseases. Aquarium fish are often susceptible to numerous diseases , due to the artificially limited and concentrated environment. New fish can sometimes introduce diseases to aquaria, and these can be difficult to diagnose and treat.

6. Community aquarium - Wikipedia

   en.wikipedia.org/wiki/Community_aquarium

   The most deadly chemical in aquarium water is ammonia, produced from fish excretions. It is important to test for ammonia, since it is a chemical precursor of nitrites and nitrates, also harmful to fish. Ammonia is removed from the water through the nitrogen cycle, which takes place within the aquarium filter, which takes a few weeks to start ...

7. Bacteriological water analysis - Wikipedia

   en.wikipedia.org/wiki/Bacteriological_water_analysis

   Bacteriological water analysis is a method of analysing water to estimate the numbers of bacteria present and, if needed, to find out what sort of bacteria they are. It represents one aspect of water quality. It is a microbiological analytical procedure which uses samples of water and from these samples determines the concentration of bacteria ...