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Some aquarium substrates containing laterite also provide nutrients. [41] Reverse osmosis filters may be used mitigate damaging effects of hard water on sensitive animals and plants, and filtered water is remineralized to the ideal hardness. [42] It is also necessary to support photosynthesis by providing light.
For freshwater aquaria, gravel is the most common substrate. To prevent damage to fish, gravel should not be sharp. Aquarium gravel can be as coarse as pea-sized or as fine as 1–2 mm. [1] It is available in a number of colors, and may be naturally colored or dyed, and may have a polymer seal to ensure it does not affect water chemistry. [1]
BBA, however, tends to grow in dense patches of fine strands. It may be a symptom of high levels of nitrates, phosphates, or iron. [15] It is considered one of the more difficult species to remove, and the plants may uptake calcium from hard water which makes them unpalatable to algivores. [3] BBA may occur in both saltwater and freshwater ...
Cyanobacteria (blue-green algae) bloom on Lake Erie (United States) in 2009. These kinds of algae can cause harmful algal bloom. A harmful algal bloom (HAB), or excessive algae growth, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, mechanical damage to other organisms, or by other means.
A planted reef aquarium filled with Bladed sand moss (Caulerpa prolifera) A seagrass aquarium housing several seagrass meadow inhabitants. Aquatic plants are used to give the aquarium a natural appearance, oxygenate the water, and provide habitat for fish, especially fry (babies) and for invertebrates.
Tidewater gobies are a hardy fish fallen on hard luck. The fish can withstand extreme temperature and salinity changes, and can even slurp air from the water surface if the conditions force them to.
Fathead minnow (Pimephales promelas), also known as fathead or tuffy, is a species of temperate freshwater fish belonging to the genus Pimephales of the cyprinid family. The natural geographic range extends throughout much of North America, from central Canada south along the Rockies to Texas, and east to Virginia and the Northeastern United States. [2]
Aquarium substrate is important for the fish's health and replicating their natural environment. Aquarium decoration can consist of live or plastic plants, driftwood, rocks, and a variety of commercially made plastic sculptures. Though rocks and plants have more practical purposes for the health of the fish and the water quality.