I just got a new small (4.5 g) refugium. I need 3-4 germinated mangrove trees, refugium mud small amount, cheato, other macroalgae, and any other stuff that might be helpful in keeping the nitrate levels low (of course, along with water changes). I already have Aragonite fine grain (sugar size) sand. I will also have some left over if you want to trade. I work in Brooklyn and live in the East Village. Will come to pick up. Appreciate any help you may be. Thanks, David