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Found burrowing in mud or sand flats in the wild, they need a deep sand bed in their aquarium. 60 cm (23.6 in) Sea spider [3] Pycnogonids: No: Not collected for the aquarium trade, but occasionally seen on live rock and corals as a hitchhiker. They can be pests in a reef tank, preying on soft coral, sponges and anemones. 0.2–50 cm (0.1–19.7 in)
In most aquarium tanks, the fish are at high concentrations and the volume of water is limited. This means that communicable diseases can spread rapidly to most or all fish in a tank. An improper nitrogen cycle , inappropriate aquarium plants and potentially harmful freshwater invertebrates can directly harm or add to the stresses on ornamental ...
Unfortunately, this is an invasive species in the home aquarium and is unsuitable for reef systems and refugiums. Its prickly thallus is fragile and easily breaks up into fragments that can develop into new individuals once they settle. [159] 1 in (2.5 cm) [160] Bird-Nest: Chondria sp. Easy [161] Moderate [161] Good [161] Moderate-High [161 ...
Live rock prior to installation into a reef tank In J. Charles Delbeek's article Your First Reef Aquarium , [ 2 ] he states, The use of live rock immediately introduces into the aquarium numerous algae, bacteria and small invertebrates all of which contribute to the overall quality of the aquarium water.
Living abalone in tank showing epipodium and tentacles, anterior end to the right. Abalone (/ ˈ æ b ə l oʊ n i / ⓘ or / ˌ æ b ə ˈ l oʊ n i /; via Spanish abulón, from Rumsen aulón) is a common name for any small to very large marine gastropod mollusc in the family Haliotidae, which once contained six genera but now contains only one genus, Haliotis. [1]
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Diadema antillarum has a "shell," similar to most other sea urchins. What distinguishes the Diadema is the length of its spines. Most sea urchin spines are 1–3 cm, but the spines in this species are usually 10–12 cm in length, and can grow as long as 30 cm in very large individuals.
They are integral members of the reef ecosystem and provide habitat for fish, snails, algae, and a diversity of other marine species. Despite being dominated by "soft corals", the order Alcyonacea now contains all species known as "gorgonian corals", that produce a hard skeleton made from gorgonin, a protein unique to the group that makes their ...