Coral Frag Rack, corner

thingiverse

This is a magnetic plug holder for marine aquariums, built to withstand harsh conditions. For optimal longevity, I recommend printing it with ABS or PETG instead of PLA. To assemble the rack, you'll need 32mm x 2mm rare earth magnets, which can be easily sourced from online retailers like Amazon. I purchased mine from Amazon and found them to work flawlessly. Next, coat the magnets in aquarium-grade silicone, then attach them to their respective holders using a strong adhesive. Allow several days for the silicone to dry completely before applying multiple coats of black spray-on plasti-dip. For my next project, I plan to simplify the process by dipping the magnets directly into solid plasti-dip. While this method may not be foolproof, it should provide a durable seal that lasts. Note that this design is compatible with most plug sizes, excluding 1/2" plugs due to their larger diameter. The 10mm holes are suitable for most coral frag plugs on the market, including the Oceans Wonders coral frag plugs featured in the product image. If you're interested in a similar design, be sure to check out my other frag rack project on Thingiverse: https://www.thingiverse.com/thing:2672511