Update as of 05/13. Probably will be a long post TL;DR scroll to the bottom.
I found an aquarium club local to me most of the members keep freshwater but a few have saltwater aquariums. Told them about my situation they offered to test my water prams and compare with what I have.
I've been using an API test kit to measure Ammonia, Nitrite, and Nitrate. They used the red sea test kit and our results were the same as in no measurable amount in all 3. They looked through the logs I've been keeping and they also agree that my tank had cycled for longer than what I thought.
Being a new tank and I had limited space I "Cured" my dry rock in my display tank. After 4 weeks of the cure, I did a 75% water change and added the raw shrimp as I wanted to use that as a medium to cycle my tank. I know what you maybe be thinking by now but if you keep reading on surely it would make some sense.
During the cure process which had started back in April, I had used my test kits as I wanted to familiarize myself with how they work. Measuring Ammonia, Nitrite, and Nitrate. first few days everything measured 0 as the days and weeks passed on I measured a massive spike in Ammonia, Nitrite, and eventually Nitrate. After 4 weeks the Ammonia and Nitrite slowly dropped to 0. During the month of April I had done a 25% water change every Saturday with the 4th Saturday a 75% water change. Because of the water changes I ended up taking so much of the Nitrate that my test kit could no longer detect an amount.
Moving on to April 30 I added CaribSea live sand and placed a raw shrimp in the tank to start my cycle. The first 3 days all 3 prams still measured 0. On May 4th I started measuring Ammonia .25ppm, I removed the shrimp as I've heard it could get really gross and nasty if left in there for too long. May 5th I did another check of all 3 this is what I got, Ammonia 0, Nitrite 0, Nitrate 0.
May 8th I went and bought the 2 clown fish from my local LFS at the time I thought they were a reputable place to buy livestock but actually take little care of the fish they sell. One of the members of the club use to work there and told me the nightmare the place actually is when it comes to selling fish. And most likely the reason my fish had died was because of their lack of care.
TL;DR. I cured my rock in my DT due to lack of space. This also started the cycle process along with it. Result the rock had cycled since April 1st. Doing weekly water changes with a large water change of 75% lowered my nitrates to undetectable levels. LFS I bought the fish from does a horrible job at caring for their livestock which is a plausible answer to as why they died so fast as there have been stories about having high mortality rates from the store.