Empty the tank and scubb it out. Replace or boil and wash any gravel, rocks or other decorations. Replace all plants with new ones. Then follow the basic rules for keeping any fish successfully, which are as follows. 1 inch of fish needs at least 1 gallon of water. :- Every tank must have a permanently running cycled filter. :- Every tank must have at least 50% of its water replaced every week. If you follow the above rules and also supply the fish with the temperature and other special water parameters that its species needs, the fish will stand a chance of living a reasonable life. I can guarantee that failure in any of the above will result in your fish having constant health problems.
A fish tank can be sterilized by adding a good disinfectant or detergent when scrubbing it out. Care must be taken however to rinse very very well and really make sure there is none left contaminating the tank when you are refilling it.
Before putting any fish into your tank you must condition the water. Also don't take fish out of bags, place the bag on top of the water so your fish can adjust to the changing temperature. Keep fish in bag for at least an hour or two.
Fill the tank with warm tap water,put in filter.Let water sit for a week,if you have it add a couple teaspoons of aquarium water conditioner but you don't have to.
just prepare them with a net and gently dump it in
Salt Water Fish
Assuming the dirty fish tank has had fish and water in it, without doing various specialised water tests it is impossible to tell what is in it.
It might be unsafe to drink because fish food, fish scales, fish waste, and many different kinds of bacteria are in fish tank water.
Live Aquaria provides you with supplies to preserve a fish tank with salt water fish. Fish tank provides lighting, fish food, and more to help you maintain your salt water fish tank.
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The white scale on the inside of the fish tank is from a buildup of minerals that were in the water.
Robert Frost
Scoop all your fishes to another tank or tub of water and clean the fish tank just as you would normally without the fish
the cause might be a sick fish, a dirty tank, or over feeding.
put the live fish in a bag filled with water and change the tank then put the fish back in.
you can fish the fish out of the tank with a net or a cup and keep them in a bowl with some water that came from the unclean tank, until the next tank is ready for their arrival. So when you have the next tank ready, you can just take the cup and dump them in with the water that you left it in when cleaning.