The 20 gallon long tank dividers are easy to install and maintain. They will come with a full instruction sheet. They are made from a solid material and are very sturdy. The divider has been designed with holes throughout it so the Betta fish can rarely see each other making for a stress free environment. It works best in a tank with substrate and is not suitable for bare bottom tanks. If you don’t have a tight fitting lid you may need to lower the water level. The divider does not work in a rimless tank.Please check tank sizing before buying.20 Gallon Long Tank Divider SizeActual size: Width minimum 11 5/8 inches to maximum 12 inchesHeight minimum 11 1/2 inches to maximum 12 inchesDesigned to fit:Aqueon basic $1 per gallon sale tanks 30.3″ x 12.5″ x 12.8″Things to note before buying.These dividers are not flimsy like mesh dividers. Depending how many dividers you add to your 20 gallon long tank you may find you require filtration in each section to help with water flow and an additional heater.Do not force the divider into a tank as we will not be held responsible for any damage to the aquarium. The use of this product is at your own risk. Made in the USA. Due to the nature of this product we do not accept returns, refunds or exchanges on this item. For International sales all taxes and customs duties are the responsibility of the buyer. Shipping is non refundable.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.