Check the listing for details. MAGNETIC Nori Cage Feeder Tangs aquarium fish tank reef. Condition: New. Listed at 47.99 USD. My products are made to order, custom! Please allow up to 10 business days for fabrication time for most products. Because my products are made to order, fulfillment time can rarely take longer. Please do NOT order if you cannot wait!!! Full custom orders can take up to four weeks to complete. Please let me know ahead of time if this may be an issue. Shipping prices listed are to the contiguous U.S. Please contact me if you live elsewhere and want a shipping quote. Because my products are handmade and/or hand assembled, there may be small irregularities (fingerprints, marring, hair, etc) which will not effect the performance of your product. Don’t fall for wimpy magnets! I revolutionized the usage of high-powered magnets in our industry! One of the biggest issues with other manufacturers out there is their puny magnets and suction cups that are simply laughable. That’s why years ago I created the highest performing magnet pods on the market. These are hand assembled using the most powerful magnet available. You may see other companies copy my style, but they’re never the same. I was the first one to produce this type of nori feeding device, utilizing high powered magnets. Large - Approx 5" x 5" Medium - Approx 3.5" x 4.5"