Hi guys! Old reefer >15 yrs ago and just restarting .. the learning curve is real as when I used to keep them I kept them in tap water / salt mix as rodi was was relatively expensive and I successfully kept a 4ft mixed reef with softies, Zia. And polyp based corals well. Running an old fluval 405! Now with better lighting.. top of units fleece rollers in very out of my depth I’m currently figuring out how to build an open but simple scape for the same types of corals as before but really want to keep macro algae in it for a natural look. Any tips for making the hardscape? Does it have to be glued ? Filter wise I’ve made my own internal sump with bright filter blocks. Bio porus spheres as they work well in my tropical aquarium. I feel like it needs more but really want to stay away from foams :) Any advise would be welcomed 




