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  2. Marine aquarium - Wikipedia

    en.wikipedia.org/wiki/Marine_aquarium

    Nitrates should not exceed 2 ppm in reef tanks, or 20 ppm in fish-only tanks. It is sometimes acceptable to have a small amount of nitrate buildup, as some livestock, especially fish, are fairly tolerant of nitrate. Most corals, while able to assimilate nitrate, cannot be expected to survive, much less thrive, with high nitrate concentrations.

  3. Aquarium filter - Wikipedia

    en.wikipedia.org/wiki/Aquarium_filter

    Some systems incorporate bacteria capable of converting nitrates into nitrogen gas. [6] Accumulation of toxic ammonia from decomposing wastes is the largest cause of fish mortality in new, poorly maintained, or overloaded aquariums. [7] In the artificial environment of the aquarium, the nitrogen cycle effectively ends with the production of ...

  4. Siphon - Wikipedia

    en.wikipedia.org/wiki/Siphon

    Another possible contamination point is the water intake in the toilet tank. An anti-siphon valve is also required here to prevent pressure drops in the water supply line from suctioning water out of the toilet tank (which may contain additives such as "toilet blue" [53]) and contaminating the water system.

  5. Recirculating aquaculture system - Wikipedia

    en.wikipedia.org/wiki/Recirculating_aquaculture...

    Removing solids reduces bacteria growth, oxygen demand, and the proliferation of disease. The simplest method for removing solids is the creation of settling basin where the relative velocity of the water is slow and particles can settle at the bottom of the tank where they are either flushed out or vacuumed out manually using a siphon.

  6. Swim bladder disease - Wikipedia

    en.wikipedia.org/wiki/Swim_bladder_disease

    Fish surgeons can also adjust the buoyancy of the fish by placing a stone in the swim bladder or performing a partial removal of the bladder. [ 2 ] In order to prevent this disease, keep the tank as clean as possible, make sure the temperature is slightly higher than normal to aid in digestion, and, most importantly, feed the fish highly ...

  7. Des Moines Water Works asks residents not to water lawns due ...

    www.aol.com/des-moines-water-works-asks...

    While high nitrate levels in drinking water can cause blue baby syndrome, a condition that can be fatal to infants 6 months and younger if not treated, some studies also have linked even moderate ...

  8. Siphon (mollusc) - Wikipedia

    en.wikipedia.org/wiki/Siphon_(mollusc)

    The siphon is part of the mantle of the mollusc, and the water flow is directed to (or from) the mantle cavity. A single siphon occurs in some gastropods. In those bivalves which have siphons, the siphons are paired. In cephalopods, there is a single siphon or funnel which is known as a hyponome.

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    Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

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