Uxcell 10-Piece Cylinder Fish Tank Bubble Air Stones, 15Mm By 25Mm, Gray - Product Features
- Aquarium Air Stone; Stone Size : 15 x 25mm/0.6\" x 1\"(D*L)
- Connector Size : 4.5 x 2.5mm/0.18\" x 0.1\"(Outer Diameter * Inner Diameter);Total Length : 40mm/1.6\"
- Main Material : Mineral, Plastic; Color : Gray
- Weight : 70g
- Package Contents : 10 x Aquarium Air Stone
XINYOU XY-380 Aquarium Fish Tank Biochemical Sponge Filter, 4-1/2-Inch (3-Pack) - Product Features
- High-quality aquarium sponge filter for efficient biological filtration
- Supports large bacterial populations to break down aquarium waste
- Dense, high-quality foam ensure reliable longer lasting aquarium use
- Do not trap fish fry and are safe for small size fish like dwarf cichlid, guppy, killifish, etc.
- Sponge Filter Dimensions: 4.5\"D x 8.0\"H - Max tank size: 20 Gal.