surfacearea - Saltwater aquariums need a large ____ _____, this is where oxygen actually enters the tank., hydrogensulfide - Dangerous chemical formed from anaerobic processes, nitrobacters - Bacteria that changes harmful nitrite into less harmful nitrate, basic - pH should be 8.3 which is slightly ____., water - weighs 8.4 lbs per gallon, nitrate - Least harmful chemical given off by Nitrobacters, finrot - Fungus on a fish's fins, can be treated, physical - Filtration removing large particles from water like scales, algae, extra food, chemical - Filtration that removes chemicals from the water, anaerobic - means without oxygen, Nitrosommas - Bacteria which converts harmful ammonia to a less deadly nitrite, bacteria - What is responsible for chemical filtration in the tank?, calciumcarbonate - Chemical which acts as a "buffer" in our tanks, hydrometer - used to measure density, specific gravity, and calculate salinity., salinity - measure of dissolved salts, undergravelfilter - filter which does both physical and chemical filtration, symbiosis - close and permanent relationship between 2 different species, mutualism - symbiosis in which both organisms benefit, buffer - prevents sharp changes in pH, specificgravity - Refers to the ratio of densities of seawater to pure water at various temperatures, parasitism - symbiosis in which one organism benefits and the other is harmed or killed, evaporation - Main reason to keep a closed tank lid is to prevent, Aerobic - term means with oxygen, scavenger - will eat anything, anytime, anywhere, fresh - ______ water holds more dissolved oxygen., protozoan - Ich is a _______ which eats skin and tissue.,

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