About cichlids .. taking care of cichlids .. kindly help me please !?

You have way too small of a tank for all of those cichlids. And 22 of them? That is torture. Do you realize they get anywhere from 8-18 inches long? And they get big fast. You need at least 50 gallons for one Cichlid and 25 gallons for each one you add. For all of those, you need at least a 600 gallon tank, you should only have two in your tank. You need to get rid of a lot of them, otherwise they WILL die. You also need a heater and they live in water that ranges from 74-84 degrees, you also need hiding places (this is how they hunt), you also need and air pump for oxygen in the water, lots of plants for more hiding places, and you need to clean the water once a week with with a 30-50% water change, they are messy fish. They eat pellets, meal worms, blood worms, and feeder fish (not goldfish, no nutritional value). Sorry, but for how many cichlids you have in a small tank, that is cruelty. I really hope you take my advice and get rid of all of them except for 2 of them or you get a 600 gallon tank.