Goldfish care

Question
Hello Sir,
I have aquarium of size 18 * 12 * 18inches. I have only kept only goldfishes in it. Only during the time of feeding they are active and mst of the time they are floating at one place. So please suggest me the way to make them active. I stay in Pune, India. here they are not giving the correct information on how much to feed. The food is small red pelletes. My tank consists of a filter, thermostat,and some pebbles. Since last to weeks 2 of them have died.
Please help me at the earliest.
Thank You.

Answer
Hi Abhijeet,
Are you able to check the water status? also, how many goldfish do you have?

Goldfish do not have a stomach so food passes through them in about 10 minutes. i would feed them a small amount of about the size of their pupils on their eyes. do the same for every fish and feed the tank 3-5 times a day making sure not to overfeed.

Will