Rite i had a prawn in my tank for about 3 days it turned mouldy and rasied the ammonia to 2 ppm i took it out and added pure ammonia got it up to 5 ppm and ther is like lots of algae building up on filter side ect had pure ammonia in for about 3 days still not went down any how long should it take
Hey hey slow down!

Good that you have moved to ammonia solution and 5 ppm is spot on. Unless you have matured media in your filter (sponge from an already cycled filter) don't expect anything to start happening for up to a couple of weeks at the earliest.
First rule of 'cycling' is patience and remember there is no short cut (other than the a fore mentioned mature media) and until it's completed it's foolhardy to add fish 'cos they'll die and you will give up ending in another cheap tank on Ebay!