well like the title says i have some questions about macro algae and refugiums i have a 29g tank with out a sump right now i dont have the money to build one its a glass tank and i dont want to drill in to it, so back to the topic, i have a marine land hob filter with out the bio wheels, i am wondering if its possible to turn one side into a refugium and grow some macro algae, also what are the different types of macro algae?