{"product_id":"baozqua-undergravel-filter-system-for-20-gallon-tank-20-plates-adjustable-lift-tubes","title":"BaoZqua Undergravel Filter System for 20 Gallon Tank – 20 Plates \u0026 Adjustable Lift Tubes","description":"\u003ch3\u003ePremium undergravel filtration for 20 gallon tanks\u003c\/h3\u003e\u003cp\u003eIntroducing the BaoZqua Undergravel Filter System, a complete kit designed for steady, air-driven filtration in both freshwater and saltwater setups. The package includes 20 interlocking filter plates, 2 adjustable lift tubes, 2 check valves, 2 regulators, extra air stones, two 39-inch airline tubes, a connector tee, and all necessary fittings—enabling you to build a tailored undergravel filtration solution. Note that an air pump and tank are not included and should be prepared separately.\u003c\/p\u003e\u003cp\u003eHow it works: An external air pump (not included) pushes air through the system, creating a gentle downward flow through the substrate and across the plates. Debris and fines are drawn toward the substrate and trapped by the fine mesh, helping promote clearer water and a steady circulation pattern within the tank.\u003c\/p\u003e\u003ch3\u003eBiofiltration \u0026amp; Aeration\u003c\/h3\u003e\u003cp\u003eBeneficial microbial communities can colonize the gravel bed and plate surfaces, contributing to the breakdown of ammonia and nitrite as the air-driven flowoxygenates the water column. This setup can support active fish behavior and a stable biological cycle, contributing to a balanced tank environment.\u003c\/p\u003e\u003ch3\u003eModular Plate Design\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTwenty snap-fit plates provide extensive coverage, up to roughly 22.04 by 13.78 inches, with a fine 0.06 inch mesh to prevent substrate from falling through.\u003c\/li\u003e\n\u003cli\u003eThe sturdy base helps resist bottom cracks and supports heavier substrate, improving water circulation and biofiltration in both freshwater and saltwater setups.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEasy Installation\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTool-free setup: lay plates, add substrate, attach the lift tube, and connect to an air pump (not included).\u003c\/li\u003e\n\u003cli\u003eThe lift tube is adjustable and can be cut to fit; the included check valve helps minimize backflow. For a 20 gallon aquarium, a quiet 6–10 watt air pump is recommended for optimal flow.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePlease note: air pump and tank are not included. This kit is designed to be flexible, scalable, and compatible with a range of aquaria, enabling you to customize filtration to suit your tank’s needs.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is included in the BaoZqua Undergravel Filter System for 20 Gallon Tanks?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Includes 20 interlocking plates, 2 adjustable lift tubes, 2 check valves, 2 regulators, extra air stones, tubing, and connectors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is an air pump required to operate this system?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, an external air pump is required and is not included in the kit.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BaoZqua","offers":[{"title":"Default Title","offer_id":57200324018553,"sku":"B0FYDJNKF6","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/8934\/1049\/files\/baozqua-undergravel-plates-20-set.jpg?v=1777786366","url":"https:\/\/petlyvox.com\/products\/baozqua-undergravel-filter-system-for-20-gallon-tank-20-plates-adjustable-lift-tubes","provider":"petlyvox","version":"1.0","type":"link"}