Tetra Corporation

Tetra Holding (US), Inc.

Günter Ritter

The invention describes novel preparations and their use for reducing the acute damaging effect of ammonia in organisms living in the keeping water of aquariums, garden ponds, or aquaculture systems. The preparations consist of adducts of sodium hydrogen sulfite at an aliphatic aldehyde of the general formulaX&#x2014;(CH)&#x2014;CO&#x2014;H,wherein

Preparation and use for reducing the damaging effect of ammonia on organisms living in water

The invention relates to agents for the removal or reduction of inorganic nitrogen compounds, especially nitrate, from biological aquarium waters, containing a biologically degradable polymer, preferably polycaprolactone (PCL) and to the utilization of said agents.

Denitrification of aquarium water

A composition for long term improvement of water quality in biological tank systems is described as: 1) at least one highly or poorly soluble Al, Fe, TiOor ZrOsalt of an organic carboxylic acid, optionally mixed with an organic carboxylic acid; 2) at least one water soluble N free biologically degradable organic compound; 3) at least one soluble alkali or alkaline earth metal salt of an organic carboxylic acid; and 4) at least one Mgsalt of an organic carboxylic acid, optionally mixed with at least one Caof an organic carboxylic acid; and also 5) trace elements and vitamins, particularly water soluble vitamins of the B series. Changes in water quality determining parameters can be reduced, minimized or eliminated by using the described agent and thus a significant reduction in partial water change frequency or a clear extension of periods without water changing can be achieved.

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Bünde, Germany

Günter Ritter