Top Fin® Retreat Filter Cartridge - Fish Tank Filter Cartridges - 3 Count

DESCRIPTION Keep your aquarium water clean and healthy for your aquatic pets with the help of this 3-pack of Top Fin RF-L Filter Cartridges. This three-month supply of filter cartridges rids your aquarium water of odors, pigments, and chlorine. Only at PetSmart.Features: Refill for Top Fin Desktop Aquariums with large retreat filtersWith coconut shell activated carbon to help absorb undesirable odors, pigments and chlorine3 Count Includes: 3 Filter cartridgesIntended Pet(s): FishProduct Dimensions: 7.9 in L x 2.7 in W (20 x 6.85 cm)Instructions: Step 1. Remove used cartridge2. Rinse new cartridge under cool water to remove dust.3. After rinsing, insert cartridge into filter chamber. Make sure cartridge fits completely into filter chamber.Caution: Never use soap, detergents, or cleaning agents while cleaning the aquarium or equipment as they can harm your fish. This is not a toy. Keep out of reach of children.Advice for Use: To help maintain a healthy aquarium, change filter cartridge every 3-4 weeks, or if water flow becomes obstructed. Remove cartridge when medicating water as carbon will absorb medications. To maintain a healthy aquarium it is recommended to change 25-30% of water weekly. Use a water conditioner and bacteria supplement (sold separately) every time you add fresh tap water to your aquarium.