HOw long for cycling tank??

I have a Tetra water wonders 1.5 gallon tank and im wondering how long it takes to cylce and i can't get those testers for ammonia so in the tank i have one small male guppies. platy, glow tetra,and 1 of some little really tiny fishy. before i had two small goldfish at first put the tank but now i took them out cuz i saw bubbles on the rim of the tank and i read about this topic of the bubbles and said it was ammonia from the goldfish waste cuz they crap like crazyand some bubbly foam around the filter on the corners. ill give u a pic and/or a video of my tank? gimme ur email and ill send it to u. the water is foggy and the bubles are moslty gone now. So plz help ! Thanks