Building a 700-Gallon DIY Plywood Aquarium: Is It Possible? | Mr. Saltwater Tank

03-26-2026 In this episode, Mark visits Brady, a dedicated reef keeper who took the ultimate DIY plunge: building a massive 700-gallon reef tank out of plywood and fiberglass. Brady shares the "reverse boat" engineering behind his build, explaining how he used 2x4s and epoxy resin to create a custom display that fits perfectly in his basement. The tour covers everything from his unique "cryptic zone" sump and home-water-heater heating system to a mind-blowing, custom-engineered automated frozen food feeder controlled by his Apex. More than just a gear walkthrough, this video is a reality check for the hobby, discussing the "bumps in the road", like battling cyano and low nutrients, that every reefer must navigate to reach a thriving, fully grown-in masterpiece. ______________________________________________ ⚠️ Products In This Video ► Tunze ORCA 6105.502 BLACK "Saltwater Exclusive" Oscillating Aquarium Wave Pump - https://www.saltwateraquarium.com/orc... ► Tunze ORCA 6075.501 WHITE Oscillating Aquarium Wave Pump - https://www.saltwateraquarium.com/orc... ► Tunze Turbelle Ecostream 6255.005 Flow Pump HUB Edition - https://www.saltwateraquarium.com/tur... ► Neptune Systems A3 Apex System (A3APEXSYS) - https://www.saltwateraquarium.com/a3-... ______________________________________________ Website - https://www.saltwateraquarium.com Follow us on Facebook -   / swaqdotcom   Follow us on Instagram -   / saltwateraquariumdotcom   Follow us on TikTok -   / saltwateraquarium.com   ______________________________________________ 📩 If you have a request related to equipment in this video, or this video in general, email - [email protected] #saltwateraquarium #swaq