Check the listing for details. Poth-O-Carry™ Plus: Pothos Holder with Open Face Technology for Easy Propagation. Condition: New. Listed at 14.99 USD. The Poth-O-Carry™ Plus was designed to hold Pothos (and other plants) at the top of your fish tank, with the bottom of their stalk dipped in, the leafy part on top. The plant will drink in the delicious fertilized water from your fish tank and thrive! As a thank you, the plant will slurp up the excess nitrate in your tank, decreasing the frequency of water changes required. It's a total win-win. Pothos also has the added benefit of absorbing airborne toxins in your home! Pretty cool. Sometimes you want to transplant your pothos or other plants out of your tank to another area. sometimes you want to keep your roots too. I've made the Poth-O-Carry™ Plus for just that purpose. A removable face plate allows for swapping out root-plentiful plants, into other vessels. This unit has slightly larger holding tubes, so it's 4 tubes wide instead of the original 5. There's no hard-to-reach areas to clean, just scrub it out and add another set of plants. Approximate size of the plant holder portion is just over 3.75" wide. ( 3 7/8")