Update* New 20 Gallon Tank

[herguitarist94]

i have a 20 gallon brackish tank, with top fin. 20 gallon filter. 100 watt heater. the temperature is at the right temp. for the type of fish. and its just 3 green spotted puffers. i have done no testing because Ive ran out of strips and i just wanted to know how long i MUST wait for it to be done with the cycling process, because my fish are getting very restless in the tank there stuck in.

 

[n3ont3tra]

You need to wait until ammonia and nitrites are zero, then do a large water change to remove the nitrates.
It will probably take a few weeks.
But you mean your fish are in the cycled 20g and your waiting to move them into a bigger tank? or something...?
If you already have a cycled tank you can transfer part of the filter media (sponge, pads, whatever) to the new tank and it's pretty much cycled.

 

[Bebobb]

You need to wait until ammonia and nitrites are zero, then do a large water change to remove the nitrates.
It will probably take a few weeks.
But you mean your fish are in the cycled 20g and your waiting to move them into a bigger tank? or something...?
If you already have a cycled tank you can transfer part of the filter media (sponge, pads, whatever) to the new tank and it's pretty much cycled.

Or, if you are tearing down a tank and upgrading, you can just run the filter from the first tank alongside the filter of the new tank, and it is an instant cycle.

 

[Assaye]

It could take weeks to cycle (assuming you are doing it with ammonia - if you are not adding anything, it will never cycle).

Get a new test kit =)