Fish tanks that contain live freshwater fish are often very decorative but there is a delicate balance between too much and too little water, along with the suggested tank size of at least twenty gallons long. Too few fish and the tank can be a litter box. On the other hand, too many fish and it can become an aquarium sanctuary for algae-loving "garlicky" fish. The fish should have acceptable water chemistry with low salt and acidity values, preferably pH values in the range of seven to ten. The water temperature should be around seventy degrees Fahrenheit. An air stone is suggested as part of the setup but not required.
A variety of cold water fish tanks = can be created by starting with fish that are similar or native to the tank, such as the serama minnows or some cichlids like the zebra danio. These can be obtained at your local fish store, pet specialty store or aquarium distributor. There are also a number of different species of large wrasses like the silversmoke or purple coney. Many of the larger varieties will tolerate low levels of light but do not do well in bright sunlight.
Cold water fish tanks come in a wide variety of sizes = from just a few gallons to twenty-eight gallons or more. The larger tanks can be used as community tanks with plants, coral and/or driftwood and other decorations. Containers that are at least three gallons and closer are best, as closer proximity allows the fish to feel more secure in their environment. There are a few different temperature requirements that are important to follow. They range from twenty-one degrees on up to sixty-two degrees.
One of the most popular choices for a cold water fish tank temperature is eighty degrees The reason is that these fish prefer to have warmer temperatures so they don't become too stressed. However, the tank must be kept several degrees cooler than the room temperature if you want the fish to survive. For example, you would not set up a tank in a hot laundry room. The fish could become seriously ill if left in this environment.
The next choice for a cold water fish tank temperature is around fifty degrees. Some fish like to stay a bit cooler than this, such as silver carp and white tail snapper = They tend to do best around fifty degrees. Some goldfish do well in the lower thirty-degree temperature tank, such as the comet goldfish. They can handle it and will usually eat some of the food dropped by the owners while still swimming around.
Don't set up a tank for your fish that's too big for them = Make sure that you use proper filtration and heating equipment to keep the koi from being stressed out. You might also consider providing live plants for the koi to exist in. This is often an effective way to maintain the proper environment necessary for your koi to survive in.
