Hello and welcome to fishlore
How nice to get a tank and fish for Christimas, fish keeping is a lot of fun but it takes time to learn what is needed to keep your fish happy. I hope that you take some time to read up in the freshwater beginners section of the forum on the advice on starting a new tank. I have moved your thread to the
freshwater fish beginners forum as you will get more responses there.
As you suspected, your tank is not cycled and it will take awhile to get there.For now, since you do have fish in the tank you will have to do daily water changes to protect the fish you have left from ammonia poisoning.
Your Gourami's are probably feeling the affects of the ammonia present in your tank and are not very active. They should get along fine with the neons. What size is your tank?
Do you have a water
test kit to measure your ammonia,
nitrite and
nitrate levels? You would need this to determine how far along you are as your tank goes through its cycle. For now, daily water changes of 50% is recommended and with every
water change I would suggest using a product called Prime (water conditioner) or one that the label says it detoxifies ammonia.Doing this daily will insure that your ammonia levels do not get so toxic that it will kill off your fish as any ammonia present in the tank is toxic to them.
Also I would not add anymore fish to your tank until the tank is cycled as you are putting a lot of stress on the fish while in an uncycled tank and run the chance of loosing more.
Best of luck to you and your fish.