Hi Jay, welcome to the forum.
... well, we had this problem with few other members already, unfortunately they didn't respond or let us know how their fishies are doing in the meantime....
Without wanting to offend anybody I must say again, as I said in other posts:
NEVER KEEP A GOLDFISH IN A BOWL
I explain why:
Goldfish are extremly "messy" this means they produce lots of waste and the water gets polluted so quick.
Goldfish grow big, they can grow up to 12 inch. This means they need MINIMUM 10 gal each. So the minimum tank size is 20 gallons, but better more.
Your fish being at the surface IS lack of oxygen. They already pollute the water in a bowl in a few hours.
It is for them now like swimming in their own sewerage.
See, in nature all fish live in a self water exchanging system. This does not happen in a bowl or a tank. The water here is stagnant. Therefore it is essential to provide excellent filtration with a filter which turns at least 3 times the volume of the tank, better 5times. Towards this good aeration with an airstone is important and of course live plants.
In those conditions your fish are kept now they are stressed and will get ill and be tortured to death.
So basically what is required:
- a proper tank :ASAP
- filter : ASAP
- airstone and pump : ASAP
- waterconditioner ( to remove ammonia, chlorine, chloramine, heavy metals from the tap water as they are highly
poisonous for fish : ASAP
- testkit for water parameters ( Ammonia, Nitrite, Nitrate, pH ) I recommend the API MasterTestKit for freshwater
( until you can get this testkit you can take water to the petshop and they test it for you for free )
BTW, may I ask you: How have you been advised by the staff in the store when you bought the fish? Did they ask you if the tank is cycled?