Yup can try. But go slow. And try to read up and research your first new addition properly. Resist any temptation to buy fish that are for advanced level hobbyist or that requires a matured tank to thrive e.g Mandarin Fish. Go with common clown, chromis, pistol / shrimp goby if you want. You can spend more time observing those fishes and telling the owner to feed the fish. Make sure they are feeding properly. Proper acclimation is key as well so get those equipments ready. All ze best! Sent from my Redmi Note 9 Pro using Tapatalk