Right let's try to get the situation of this tank established.
It is, we think, a 12 gallon tank (correct us if we're wrong phillip).
It contains 2 danios and 2 platys. Possibly also a betta (I thought you'd taken that out? let us know). Anything else? Did I see 2 guppies mentioned in one post?
It is going through the cycle and has now reached the nitrite stage.
At this stage the essential thing is to keep the ammonia and nitrites as low as you can through frequent water changes with dechlorinated water. Probably as often as once a day.
The most essential thing is NOT to buy any more fish until the cycle is finished. This means at least another month. You need to concentrate on keeping the ones you have alive.
You need a liquid test kit; there seem to be rpoblems with the one you have.
I am sorry if much of the posting has been taken up with discussions of forum etiquette. We do want to help, honestly. But you can help us, phillip, by writing as legibly as possible (not texting, makes it harder to read), and keeping all information in one thread.