Hello guys, just wanted to share a thought with you about bonsai soils. I'm a self taught "trying to be" a bonsai artist, so, please forgive my lack of knowledge. I consider Mr. Nigel Saunders from The Bonsai Zone youtube channel as my online guru and have learned a lot from watching his videos in the past 5 years. He primarily uses a blend of turface and perlite for all his trees and from seeing his videos i think he waters the trees when he feels the top soil is dry. What puzzles me is how does he end up growing algae and moss over his soil and not 'overwater' the plants? When I try to keep the topsoil moist for moss growth it tends to be too wet for my trees and I live in a tropical climate where the Temps are above 25°c throughout the year. I should also mention that I stay in a apartment so that's different as well as I don't get 6-7 hours of sunlight on my trees. I would appreciate you guys sharing your views and thoughts on this subject. Thank you!