Tips on Maintaining a Healthy Ecosystem in Your Freshwater Aquarium
So with a healthy aquarium ecosystem , all living things are in balance, the water chemicals are at proper levels, and the whole aquarium thrives as one. They understand that the aquarium is not just water, fish, and plants but rather all of the contents are one single living system. The fish use the oxygen to breathe and they in turn release carbon dioxide that the plants use in photosynthesis and the cycle continues. A sudden jump in ammonia levels could kill both the new and the old fish so it is of utmost importance to do things gradually when it comes to adding more fish to the tank. When most people think about an aquarium, they think only of the fish in the tank. These bacteria metabolize fish waste and leftover food converting harmful ammonia and nitrites into harmless nitrate that feeds the plants. The plants use the nitrate as food and through photosynthesis, release oxygen into the water. A glass tank filled with water, fish, and maybe a plant or two. Each time you want to add something, stop and consider how that may affect the other fish, the plants, and the water quality. The most successful people with their tanks take into account the whole ecosystem of a freshwater aquarium. A healthy aquatic ecosystem will strike the right balance of fish and plants.
I am a little more on the fence however when it comes to some other species of dolphins, such as the ones they keep at Vancouver 
SARASOTA SHELL CLUB Mote Marine Aquarium, 3 rd Floor Buchanan Room, 1600 Ken Thompson Pkwy, Sarasota (492-5296 or sarasotashellclub.com).
Mark Collier, who owns Custom Marine Aquaria in Scottsdale, Ariz., once built a 30-foot-long aquarium into the floor of someone's game room, which contained
