Im a beginner fishkeeper need some help!?

Actually, you can keep guppies, neon tetras and some suckers if you like. They help to clear up algae in your tank. Try buying some fish guard, its a stabilizer to be put into the water in your tank to get rid of clorine and other impurities. Rem your gravel, any kind will do, start the filter and water pump, (pls put in a water pump) & some water plants if possible and let the water run for perhaps 2 hrs first. Then introduce the fishes. Leave them be and monitor them. They should be exploring the tank. Give them half an hour to an hour to settle and try to feed them. Guppies are extremely adaptable fishes. They should be feeding then. Monitor them through the next few days. They should be fine unless they start dying by the lot in the next 24 hours. If then, pls check that it could be your tank or that the water has too much chlorine.