territory

so I’ve upgraded to a 100gallon and transferred my community from the 30gallon to the 100gallon .... mainly because my 3 Bala sharks are 6 inches now and my 4 gourami are 3-4 inches, few rainbows and a bristlenose plecostomus. I want to restock my 30 gallon but I don’t know what to do.... I was...