Hello and welcome to TFK
Some great advice has been given by other members, either your tank is going through a mini cycle or cycling for the first time. If you allowed the tank to sit for two months without adding a source of ammonia than your cycle would not start til the source was added. Keep up with your water changes and vacuuming the gravel will help. Right now I am working on helping a friend get his tank running properly, never vacuumed the gravel and recently when he added some fish to the tank they where dead the next day. Ammonia is harmful to the fish, but nitrites are even more so. Also floating plants will help and having areas in which the light is diffused will be appreciated by many fish.
A note on using medications and aquarium salt, some fish like your clown loaches that you mentioned and other fish like cories can be sensitive to these products, before adding any product to your aquarium make sure that they will be safe for all of your fish and other inhabitants in the tank. Also many of us have another smaller tank setup for using as a hospital tank for when a fish is sick, this can also be used for quarrying new fish to make sure your new additions are healthy before adding them to your main tank. A simple setup for a hospital/quarantine tank works well. Bare bottom a heater and a simple filter such as a sponge filter works well. The sponge filter you can seed in your main tank and move it to the other tank when needed. Also some types of medication can kill off your beneficial bacteria causing your tank to go though another cycle. There are some great articles written by Byron on here that I am sure you will find helpful along with many members here that are willing to try and help you out.
hi,i can understand that,my iphone does it all the time
just to let u know that my fishes are doing great the white spot is nearly gone,and nitrites are nearly down,been doing water changes every day ,would just like to say thx so much for your help
What are the rest of the parameters? Once the nitrites are gone I would back off to doing water changes to maybe every other day working your way to once a week. Providing all the numbers stay good between each water change. Glad to ear everything is working out.