Agree with most of above. For ten gal tank with three glowfish, I would feed the fish a tiny amount of food once a day ,maybe four or five flakes of food. I would not gravel vaccum cause you won't have much to vaccum in a new tank and you won't be overfeeding. I would also leave the filter alone for the next three weeks for as mentioned,,much of the bacteria(good kind) will be developing here. Filter should not need cleaning due to small amount of food that is being offered (Did I mention SMALL amount of food?). I would only use dechlorinator for the water that I repalced at water changes. I would want a dechlorinator such as PRIME or AMQUEL+ I would use nothing else in the aquarium, no stress this,cycle that,or any pH up or down potions or powders.
I would no matter what test's say ,change 2 to 3 gal of water from the ten gal tank each day or every other day and I would do this after fish have eaten for the day. For example..I might feed the fish of a morning and then change out 2 to 3 gal of water that afternoon.
If your water conditioner/dechlorinator does not clearly say on the bottle that it removes or detoxifies ,.Chlorine,Chloramines,AND AMMONIA I would look for one of the two products mentioned PRIME, or AMQUEL+ Many water conditioners only deal with chlorine and chloramines but leave the ammonia for bacteria to consume. This is O.K. in cycled tanks wher biological bacteria (good kind) is established but it is not a good product for new tanks that have yet developed a bacterial colony and fish are present.
If these suggestions are followed, there will be way less problems with regards to (cycling) and at around three weeks,, you should be able to add two or three SMALL fish to the aquarium and a week to ten days after that, another two or three SMALL fish.