Only took 2 days for my 10 gal UK tank to cycle the ammonia, unfortunately as mentioned above it took almost another 2 weeks before the nitrite went. Literally stuck at 2ppm every single test for ages then suddenly went in 12hours. Very frustrating time but don't give up. If it's any consolation I set out to buy my first fish today, sat for 4 hours in a traffic jam for a journey that was only supposed to take 30 minutes. Then found that the fish i'd wanted, which they'd had about 25 of last weekend, had sold out! BUMMER