Your tank was not ready for fish, this is what is happening as a result.
Okay, what I'm about to say is in CAPS because I want everyone to read it, not that I'm particularly yelling at you:
PEOPLE PLEASE DO NOT PLACE FISH IN YOUR TANK IF IT'S LESS THAN 6 WEEKS OLD. PLEASE DO NOT PURCHASE FISH WITHOUT DOING AN RESEARCH ON HOW TO CARE FOR THEM AND WHAT TO DO IN AN EMERGENCY SUCH AS AN AMMONIA SPIKE. PLEASE BUY A PROPER CLEAN UP CREW.
Turbos will do nothing for left over food, they're algae eaters and filter feeders so IMO, they don't really belong in a new tank as they're not really that helpful. You would be better suited with Nassarius snails, especially since they eat left over fish food, and will therefore keep your levels down.
You have yet to mention what size tank this is and what you run for filtration. These things are key to helping you solve your tank problems. A Koralia is a powerhead, a pump is a pump, these are NOT filtration. Do you have a sump or a canister filter? If so, what size, how is it set up? Are you running a protein skimmer? If so, what type and size? Are you using any chemical filtration such as carbon media?
What exactly are you feeding (brand and type of food) and how much? Do you use vitamins? Do you rinse the food before feeding it to your fish? Let the experts determine whether you are overfeeding or not, do no decide for yourself. You'd be surprised how many people overfeed and don't think they are (Meowzer is even one of them!). Honestly, the sheer fact that you only have two clown fish and are feeding twice a day, every day tells me that you are feeding WAY TOO MUCH.
You also did not mention if you have sand in this tank or not. If you do, how much do you have?
Since you have an ammonia reading in your tank, you need to do a water change ASAP. If you do not have access to salt water at the moment, you can use bottled water. Do not lower the salinity before 1.018 or your rock and sand will start to die off as well as your snails and hermits. With the lower salinity, you many be able to actually help your fish "breathe" better in the water, especially if what you're seeing is ich, in which case it will help cure the ich as well.
For the future, you should always have salt and fresh water, even if it's bottled water on hand for emergency situations like this.
You might also want to invest in some sort of water conditioner that helps lower ammonia, nitrite and nitrates. I prefer SeaChem Prime, others do not, it's whatever you find works for you.
Also, what test kits are you using?
Since there are no corals in this tank, cut back on your lighting, this will help a little with the pH, at least for the short term.
AND AGAIN, CALM DOWN, do more research and CALM down