Fluval Gravel Vac Discount 40 Unique black PVC foam padding Royal Canin Medium Light Unique black PVC foam padding provides the ultimate comfort for dogs wearing the Prestige Soft Padded Nylon Collars API® Melafix is an all natural antibacterial treatment that works to treat infections in fish Effectively traps dirt and debris Easy Start siphon for quick priming – starts with just a couple of pumps Thumb operated flow regulator allows you adjust speed as you clean Gravel guard prevents clogging Tube extension included for larger tanks and hard to reach areas Suitable for all substrates (sand rock) For use in freshwater and saltwater aquariums