The longer the better. If you used live sand and live rock in the setup it helps cycle the tank faster and better. There are also live bacteria products one can purchase and pour into the tank to speed things along. The first fish I always recommend are damsels since they are readily available, pretty, and inexpensive. I would wait a week, add the damsels, then wait another week, get your water tested at either your local petstore or if you have a testing kit yourself then if all checks out and the damsels are doing ok start looking for your first permanent fish occupient. most petstores will take back the healthy damsels, and some will give you a little store credit for them.
Depending on the species of fish and the aquarium set up. A fairly safe time would be to leave the fish overnight to settle in and feed it/them in the morning. Again depending on species it may be advisable to remove uneaten food after half an hour or so.
Well, Whenever I get a new fish-tank I have always whipped it out with a wet cloth. After that you can start adding water. You can either put water in buckets/jugs (I use about 5-6 soda bottles for a 10 gallon tank) and let it sit for 24 hours before putting your fish in the tank. Or if you have a bigger tank you can use a garden hose and put water in your tank. Its all up to you. Also, if you have goldfish and are putting them in a tank you don't have to wait 24 hours before putting them in. But those are the only fish that you don't have to let the water sit before putting it in your tank.
Before you buy a fish you need to cycle the tank, meaning you need to put the water in, turn on a filter that is big enough for your tank, and adding water-safe (a dechlorinator) to the tank and letting it run for 24 hours.
Then after you've cycled the tank you can put the fish (in their bags from the store) in the tank and let them float for 30 minutes so that they can adjust to the temperature of the water.
From what i know as long as there is no alge in your water you can leave the light on in the day and like my tank put a night light on at night and turn it off when you go to bed the fish do like some dark :)
after you establish the right water temperature
24hrs or your fish will die or put age resting and then you could put them in after a hour
A couple weeks, with a source of ammonia. You may want to read an article about cycling your fish tank.
about 10 minutes and if not kill your fish?
bad idea, a random cat may come eat you're fish
Not in its self. The fish could jump out of the tank and land outside the tank, though.
a fish
the cause might be a sick fish, a dirty tank, or over feeding.
For a freshwater tank, its safe to add fish after the the ammonia, nitrite, and nitrate levels are safe for fish. Ammonia and nitrite should be at 0 ppm and nitrate levels should be very low, under 50 ppm. You should also make sure that other parameters are safe for the species of fish that will be living in the tank.
6 hours
If your fish don't eat it in a matter of 1 hour remove it from the tank.
First, leave the bag with the fish in it floating at the top of the tank. Leave it there for thirty minutes for the goldfish to get used to the water temperature, then you can put it in the tank.
In a Bowl!
You can do one of three things. 1. Leave the pregnant fish alone in the main tank and just let the pregnancy happen. They baby fish will probably find hiding places themselves. 2. Get a breeding tank. Leave the pregnant fish in the main tank and then when you see a fry, net it, and put it in the breeding tank. 3. Get a breeding tank and put the pregnant fish in it and just leave it. Whenever the pregnancy is over, put the pregnant fish in the main tank but leave the fry in breeding tank.
it depends what kind of fish they are, and maybe how long you leave the dead fish in the tank. meat-eating fish probably would, but others wouldnt...
a week because the fish can die if you don't leave it long enough
A big fish tank is as long as its been built. 'Big' is a subjective term. Ask yourself, how long is a big fish tank, to me? That is where your answer lies. For me, a 'big' fish tank is anything over at or over 4 feet long.
if you can live with the smell
yes i leave the lip on the lid on the tank because it will jump out \
At least 1 week, test your water before you add any fish, you may need to leave it for longer to allow the ammonia level to come down. I had to leave mine almost 3 weeks.
Better leaving it unless you have chiclids in the tank then take it out.