Best Marina in 2026

Easy to read floating aquarium thermometer with suction cups

Includes a safety zone indicator appropriate for most tropical fish

Equipped with suction cups to attach to the side of your fish tank

Absorbs toxic ammonia and reduces fish stress

Contains Ceramitek, a highly porous ceramic biological filter medium

Effectively removes pollutants and odors

Replacement: Marina Slim Filter Bio-Carb is a genuine replacement cartridge for all three Marina Slim Filter Models (S10, S15, S20).

Ideal Usage: Ideal for tropical fish, the filter cartridge contains activated carbon and Ceramitek for optimum filtration and a healthy aquarium.

Helpful Filtration: The activated carbon effectively removes pollutants and odors from your aquarium water. Ceramitek, a highly porous ceramic biological filter medium, optimizes biological filtration.

Replacement: Marina Slim Filter Bio-Clear is a genuine replacement cartridge for all three Marina Slim Filter Models (S10, S15, S20).

Ideal Usage: Ideal for goldfish, the filter cartridge contains zeolite and Ceramitek for optimum filtration and a healthy aquarium.

Helpful Filtration: The zeolite effectively adsorbs toxic ammonia from your aquarium water and reduces stress in your fish. Ceramitek, a highly porous ceramic biological filter medium, optimizes biological filtration.

Made with high quality materials; the soft nylon woven mesh material is perfect for gently scooping fish

Allows for easy fish tank maintenance

Great to use in either a freshwater fish tank or a salt water fishtank

Replacement filter cartridges with a combination of carbon and zeolite

Chemical filter media removes pollutants and odors from aquarium water

Improves color and clarity of water and provides a healthy environment for your fish

Usage: Marina T100 Replacement Aquarium Filter Cartridges are for use with all Marina 3.7 L (1 US Gal.) aquariums, including the Marina Pirate Aquarium Kit and the Marina Mermaid Aquarium Kit.

Quality Filtration: Marina replacement filter cartridges have a combination of carbon and zeolite for efficient filtration.

Keep Water Clean: Chemical filter media removes pollutants and odors from aquarium water.

Replacement filter cartridges provides mechanical, biological, and chemical filtration

Polyester foam traps fine debris; carbon removes pollutants and odors; and zeolite eliminates toxic ammonia

Improves color and clarity of water and provides a healthy environment for your fish

Marina decorative aquarium gravel rainbow / multicoloured, 2 kg

Dust free, epoxy-coated gravel safe for aquarium water

Safe & non-toxic

Black colored gravel, great for adding color to your aquarium

Gravel helps hold plants and ornaments in place

Epoxy coated; No effect on water chemistry

Efficient Filtration: The Marina Slim S20 Power Filter's unique compact and slim design provides both practical and aesthetic benefits: it takes up less space than standard size filters and it brings a touch of elegance to your aquarium.

Features: The filter comes with an adjustable flow control so you can adjust the water flow level in your tank. Submerged motor operates very quietly. Also includes a strainer sponge to protect small or baby fish from being drawn into the filter.

Easy Installation: Installation and start-up are easy – no priming required. Just plug it in and watch it go! Maintenance is quick, simple and convenient.

Power filter for aquariums up to 15 gallons

No priming required

Easy to maintain

Blue colored gravel, great for adding color to your aquarium

Gravel helps hold plants and ornaments in place

Epoxy coated; No effect on water chemistry

Purple colored gravel, great for adding color to your aquarium

Gravel helps hold plants and ornaments in place

Epoxy coated; No effect on water chemistry

12 total replacement cartridges

The ideal form of filtration for goldfish tanks

Designed for Marina S10, S15, and S20 Power Filters

12 total Bio-Carb cartridges

Provides ideal filtration for tropical fish

For all three Marina Slim Filter Models (S10, S15, S20)

Intake strainer sponge protects small and/or baby aquarium inhabitants from being drawn into the filter

Exclusively designed for use with the Marina Slim Power Filters

Compatible with the S10, S15 and S20 Filter models

Absorbs toxic ammonia and reduces fish stress

Contains Ceramitek, a highly porous ceramic biological filter medium

3-pack; Easy to replace

(3 of Each) Marina Slim Filter Carbon Plus Ceramic Cartridges and Zeolite Plus Ceramic Cartridges

Carbon Plus Ceramic Cartridges - Absorbs toxic ammonia and reduces fish stress

Carbon Plus Ceramic Cartridges - Effectively removes pollutants and odors

Landscape Accessory: Enhance your aquascape with this lifelike Marina Naturals Red Foreground silk plant.

Mimics Live Plants: Natural-looking translucent colors closely mimic live aquarium plants by undulating with the currents and won't fade.

Easy Setup: Easy to install and secure, simply bury base in aquarium gravel

5 gallon glass aquarium starter kit

Comes with everything needed for your first fish tank

Use our Nutrafin Aqua Plus Water Conditioner to make tap water safe for fish

20 U.S. gallon glass aquarium

Includes a Marina Slim S20 clip on filter with quick change filter cartridges

Includes everything you need to get your aquatic home started

10 U.S. gallon glass aquarium

Includes a Marina Slim S15 clip on filter with quick change filter cartridges

Includes everything you need to get your aquatic home started

Provides mechanical, biological, and chemical filtration

Polyester foam traps fine debris; carbon removes pollutants and odors; and zeolite eliminates toxic ammonia

Easy to replace; for best results replace every 4 weeks

Produces beautiful glow under blue light

Can be mixed with other gravel for pops of glow

Creates vibrant, engaging environment for your fish

Easy-to-read floating thermometer

Includes a safety zone indicator

Equipped with suction cups

8-watt submersible fish tank heater for aquariums up to 1.5 gallons (5 L)

Creates ideal conditions for bettas to live in

Made of durable polymer, which is tougher than glass

Fish tank thermometer designed to sink to the bottom

Remains standing in a vertical position

Accurate and easy-to-read thermometer

Epoxy-coated gravel safe for aquarium water

Helps maintain clear and healthy water

Provides optimum surface for beneficial bacteria colonization

Green Moneywort Foreground silk plant aquarium decoration for aquatic environments undulates with currents

Natural-looking translucent colors closely mimic live aquarium plants and won't fade

Easy to install and secure, simply bury base in aquarium gravel