So a few months back I started getting brown algae buildups in my 75, i do 50% Wcs and nitrates always came out around 15-20. Reduced lighting, lowered stock, adding more filter pads, adding phosphate removers, the works. Well it kept coming and coming. And then I realized that I had never overturned my sand after reading a post about it. This may sound stupid but I had never even thought of it honestly. So I'm currently taking everything out, and overturned the sand. Brown tank, eureka. My media is in a bucket with a dirty sponge and airstone and my stock is in a tote with all my plants (which i'm very happy with the growth of their root systems) but as i drain the last bits of brown water out and prepare to re-fill the tank, I have to ask. How do you all keep your sand overturned without having to go through this kind of hellacious ordeal? Are there any alternatives to geophagus? Please share your experiences with maintenence on sand bottom tanks. I'm just glad I found the source of my issues at this point. Thanks.