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/orca-6105-502-black-saltwater-exclusive-oscillating-aquarium-wave-pump-orca-mk2-6105-pump-tunze/?searchid=9348621&search_query=orca ► Tunze ORCA 6075.501 WHITE Oscillating Aquarium Wave Pump - https://www.saltwateraquarium.com/orca-6075-501-white-oscillating-aquarium-wave-pump-orca-mk2-6075-pump-tunze/?searchid=9348621&search_query=orca ► Tunze Turbelle Ecostream 6255.005 Flow Pump HUB Edition - https://www.saltwateraquarium.com/turbelle-ecostream-6255-005-flow-pump-hub-edition-tunze/ ► Neptune Systems A3 Apex System (A3APEXSYS) - https://www.saltwateraquarium.com/a3-apex-system-a3apexsys-neptune-systems/ ______________________________________________ Website - https://www.saltwateraquarium.com Follow us on Facebook - https://www.facebook.com/swaqdotcom/ Follow us on Instagram - https://www.instagram.com/saltwateraquariumdotcom/ Follow us on TikTok - https://www.tiktok.com/@saltwateraquarium.com ______________________________________________ 📩 If you have a request related to equipment in this video, or this video in general, email - [email protected] #saltwateraquarium #swaq