To preface this I’m waiting a good month before getting any fish but I would like to start researching now. I have a 20 gallon tall and unfortunately just lost many fish due to silicone poisoning. I have 3 guppies left (I will be getting more of those as they are the first ones I ever got and don’t have the heart to get rid of them) a single Cory ( will also be getting more) and two golden white clouds I think I will be donating or selling as the rest of their group died and they needed colder water anyways. My tank is planted right now and sits around 78f degrees with a ph of 7.8. What are some good options for a centerpiece fish and a schooling fish? I was looking at chili rasboras but I would love some input from the community