15 gallon cube tank. Started with 10lbs of arag alive sand and Carib sea life rock. Once the temp and salinity was right I dosed the tank with dr tims ammonia to 2ppm then added fritz turbo start 900. Attached below is my daily log of the cycle. Note I was out of town days 7 and 8.
Essentially the ammonia and nitrite went to 0 by day 9 then I dosed the 2ppm ammonia again to do the test to see if it would be converted by 24 hours. It ended up failing that test and as you can see by day 11 today even 48 hours later it still has not been processed.
My plan was to wait until it is processed then do the 2ppm ammonia test again and repeat this until it goes away in 24 hours, then do my 50% water change and add my first fish. Is this the correct procedure for my situation?
Essentially the ammonia and nitrite went to 0 by day 9 then I dosed the 2ppm ammonia again to do the test to see if it would be converted by 24 hours. It ended up failing that test and as you can see by day 11 today even 48 hours later it still has not been processed.
My plan was to wait until it is processed then do the 2ppm ammonia test again and repeat this until it goes away in 24 hours, then do my 50% water change and add my first fish. Is this the correct procedure for my situation?

Many test kits, including the API, often show 0.25 ppm ammonia when it's likely much less. For that reason, I'd say you passed your test and can move on, but you could test once more to be sure 