FIELD: ecosystems modelling.
SUBSTANCE: invention can be used in modeling ecosystems in a closed artificial reservoir. The tool contains the following ingredients in wt.%: manganese II sulfate monohydrate 0.0051-2.4; zinc sulfate heptahydrate II 0.001-0.5; cobalt chloride II hexahydrate 0.004-0.2; copper sulfate pentahydrate II 0.004-0.2; sodium ethylenediaminetetraacetate 0.020-9.5; magnesium sulfate heptahydrate 0.18-5.0; iron diethylenetriaminepentaacetate III 0.059-2.8; potassium chloride 0.056-5.0; boric acid 0.001-4.0; ammonium molybdate 0.001-0.9; 3-hydroxy-3-carboxypentanedioic acid 5.0-45; water - up to 100.
EFFECT: invention provides enrichment of water in aquariums with carbon dioxide and lowering of pH value.
1 cl, 7 ex, 1 tbl
