XINYOU XY-1820 Blue Bio Filter Pad (90×30×2 cm) — Aquarium & Pond Filter Media — Overview

The XINYOU XY-1820 is a blue biochemical filter pad (过滤棉 / bio sponge) for mechanical and biological filtration in aquariums and fish ponds. The bonded-fibre mat has a coarse, open structure that captures suspended dirt and debris while providing a large surface area for beneficial nitrifying bacteria. It is part of XINYOU's colour-coded filter-pad series (white XY-1818, green XY-1819, blue XY-1820), each sheet measuring 90 × 30 × 2 cm and cut-to-size for any filter tray, sump, top filter or pond filter pool.

Key Features

• Dual filtration — mechanical (traps debris) and biological (hosts nitrifying bacteria).
• Coarse bonded-fibre mat — open structure for strong flow and good dirt-holding.
• Large sheet, cut-to-size — 90 × 30 × 2 cm trims to fit any filter or pool.
• Reusable & durable — rinse and reinstall many times; eco-friendly material.
• Blue colour — part of the XINYOU colour-coded filter series.
• Freshwater aquariums & ponds — suits tanks and large filter pools.

Benefits

• Clearer water by removing suspended solids and debris.
• Stronger biological filtration as bacteria colonise the fibre, reducing toxic waste.
• Economical and flexible — one large sheet serves several filters and lasts through repeated rinsing.

Why Choose This Product

The coarse bonded-fibre structure keeps water flowing freely while still trapping debris, and the generous 90 cm sheet provides plenty of media to cut to size. Built for repeated rinsing, it is a long-lasting, cost-effective filter medium for aquariums and ponds alike.

Ideal Use Cases

Aquarium sumps, top/trickle filters, overflow boxes, canister trays, prefilters, fish-pond filter pools and DIY filtration stacks needing a coarse mechanical + biological layer.

How It Works

As water passes through the bonded-fibre matrix, larger particles are trapped mechanically while the fibre surface hosts nitrifying bacteria that convert toxic ammonia and nitrite into safer nitrate. Rinse in old tank water when flow slows to keep the bacterial colony alive.

Technical Specifications

How to Use

Cut the pad to fit your filter tray, sump or pond pool and place it in the mechanical/biological stage so water flows through it. Rinse in tank-temperature (de-chlorinated) water when it clogs; replace once the fibre degrades.

Maintenance Notes

Rinse in old tank water — not chlorinated tap water — to protect the beneficial bacteria. If running several pads, stagger cleaning so the biological filter is never fully reset at once.