Aquariums
20 Gallon Aquarium Kit
Complete starter kit with LED lighting, filter, and heater for tropical fish keeping
Premium Fish & Aquarium Supplies
Create the perfect underwater paradise for your aquatic companions – Trusted by 30,000+ aquarists
Filtration
Canister Filter System
Quiet 3-stage filtration for 50 gal tanks with biological, mechanical, and chemical media
Food
Tropical Fish Flakes
Color-enhancing formula, 7.06 oz with natural ingredients for vibrant fish colors
Lighting
LED Aquarium Light
Full spectrum with day/night modes and timer for optimal plant growth
Heating
Submersible Heater 200W
Adjustable thermostat with guard for accurate temperature control
Decorations
Live Aquarium Plants Set
6 easy-care freshwater plants including java fern and anubias
Water Care
Water Conditioner
Removes chlorine & chloramines, 16 oz treats up to 1,600 gallons
Substrate
Aquarium Gravel
Natural river rocks, 20 lbs pre-washed for immediate use
Decorations
Shipwreck Ornament
Large resin decoration with hideouts perfect for fish to explore and hide
Testing
Master Test Kit
Tests pH, ammonia, nitrite & nitrate for accurate water quality monitoring
Aeration
Air Pump with Stone
Ultra-quiet pump for tanks up to 40 gal with adjustable air flow
Food
Algae Wafers
Bottom feeder formula, 8.8 oz with spirulina for plecos and catfish
Cleaning
Gravel Vacuum Cleaner
Siphon with flow control valve for easy water changes and debris removal
Decorations
Castle Aquarium Ornament
Medieval castle with swim-through arches safe for all fish species
Health
Fish Medicine Kit
Treats common fish diseases including ich, fin rot, and fungal infections
Breeding
Breeding Box
Floating nursery for fry protection with isolation dividers
Circulation
Wave Maker Pump
Creates natural water flow patterns for saltwater and freshwater tanks
Decorations
Artificial Coral Set
Colorful silicone coral, 5-piece set safe for freshwater and saltwater
Feeding
Automatic Fish Feeder
Programmable dispenser with LCD display for vacation feeding
Monitoring
WiFi Aquarium Monitor
Tracks temp, pH & water quality with smartphone app alerts
Why Choose PetCoup for Fish Supplies?
At PetCoup, we’re passionate about helping you create the perfect aquatic environment for your fish. Whether you’re setting up your first tank or maintaining a complex reef system, we’ve curated the best aquarium supplies from trusted brands. From high-quality filters and lighting to premium fish food and water treatments, we connect you with everything needed for a thriving aquarium.
Our partnerships with leading aquarium retailers like Marine Depot, Aquarium Co-Op, and Amazon ensure you get authentic products at competitive prices. We’ve researched hundreds of products and only recommend those that meet our standards for quality, effectiveness, and value. Dive into our selection and create an underwater paradise your fish will love!