Should I add fish

I have a 94 gallon corner tank with a 20 gallon sump/refrigum. I got about 60lbs of live sand from someone who was no longer going to have an aquarium plus additional 20lbs of live sand from LFS and 30lbs crushed coral we left this and 10 gallons of salt water for about a week. We then filled the rest of the tank added 25lbs of live rock from LFS that had just came in a few days before from the ocean plus additional 50lbs of rock that had been dormant for 7 years turned heater on, protein skimmer, pump, had everything running through sump. Algae had started to grow again on the dead rock we had our water tested after a week we had less then 5 on both ammonia and nitrate and was showing a little nitrite. I was told that in a few days we could add a few cleaning crew. So three days later I took water to different LFS store to have tested an get second opinion and all ammonia and nitrate was 0 and nitrite was around 2. We then added 5 turbo snails, 5 cone head snails, and 5 varies sizes of hermits all are doing great. As well as 2 1300gph powerheads. This was about 4 days ago all numbers are at zero would it be safe to add 2 clown fish at this time. Thanks.

I was told that since the live rock had just came in it was good for starting new tanks cause of the natural die off no shrimp was needed. But now I'm worried that my snails will run out of food if we don't get fish in their to dirty it up a little.