fish
10 Amazing Exotic Fish for Beginners
Discover the best exotic fish species for beginner aquarists. From colorful guppies to peaceful corydoras, learn which fish are easy to care for and compatible with community tanks.
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Topic
Freshwater
24 articles
equipment
Best Sand for Freshwater Aquariums: Compare by Size, Color & Price
Compare the best aquarium sands by grain size, color, and price per pound. Organized buying guide to find the right sand substrate for your freshwater tank.
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equipment
Best Aquarium Monitoring System for Freshwater Tanks in 2026
The best freshwater aquarium monitoring systems compared — from smart WiFi multi-parameter monitors to temperature controllers, digital thermometers, and manual test kits. Reviews of Kactoily, Inkbird, Seneye, API, and VIVOSUN.
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fish
7 Factors to Consider When Buying Aquarium Fish
Essential guide to purchasing healthy aquarium fish. Learn how to evaluate fish health, species compatibility, tank size requirements, and food needs before buying your first fish.
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fish
Do Fish Sleep? How Aquarium Fish Rest and Why It Matters
Fish sleep differently from any other pet you've kept. Learn how fish rest with open eyes, which species sleep at night vs. day, how to tell if a fish is sleeping or sick, and what your aquarium lighting has to do with it.
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aquariums
What Does Aquarium Salt Do for Freshwater Tanks?
Should you add salt to a freshwater aquarium? Explore the science, benefits, risks, and proper dosing for aquarium salt — including which fish species can and can't tolerate it.
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aquariums
15 Best Algae Eaters for Your Aquarium: Fish and Invertebrates
Discover the best algae-eating fish and invertebrates for freshwater aquariums. Learn about plecos, otocinclus, Amano shrimp, nerite snails, and more species that keep tanks clean naturally.
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aquariums
How to Cycle a Freshwater Aquarium: Complete Step-by-Step Guide
Learn how to properly cycle a freshwater aquarium before adding fish. Step-by-step fishless cycling guide covering the nitrogen cycle, ammonia dosing, water testing, and when your tank is ready for fish.
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equipment
Best Aquarium Air Pump for Your Tank (2026 Reviews)
Compare the best aquarium air pumps for quiet operation and reliable aeration. Side-by-side reviews of top-rated pumps for tanks from 2 to 200 gallons.
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equipment
Best Canister Filters for Aquariums: 5 Filters Compared
We compared the Fluval FX4, OASE BioMaster Thermo, Fluval 407, SunSun HW-302, and PondForse to find the best canister filter for every tank size and budget. Detailed specs, pros and cons, and a complete buying guide.
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equipment
Best 55-Gallon Fish Tank Stands: 5 Stands Compared
We compared the Verano, 4ever2buy, VOWNER, and two farmhouse cabinet stands to find the best 55-gallon aquarium stand for every budget and style. Weight capacity, moisture resistance, storage, and built-in power compared.
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plants
14 Easy Low Light Aquarium Plants for Beginners
Discover 14 hardy aquarium plants that thrive in low light without CO2 or fertilizers. Perfect for beginners wanting a planted tank without the complexity.
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plants
How to Set Up a Low Tech Planted Aquarium
Complete guide to setting up a low-maintenance planted tank without CO2 injection. Learn equipment selection, plant species, setup steps, and ongoing care for a thriving low-tech aquarium.
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fish
The Ultimate Guide to Black Moor Goldfish Care
Complete care guide for Black Moor goldfish covering tank setup, feeding, water conditions, and compatible tank mates. Learn how to keep these unique telescope-eyed fancy goldfish healthy.
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fish
Goldfish Care: Why They're Harder Than You Think
Think goldfish are easy beginner fish? Learn the truth about goldfish care requirements including tank size, filtration, temperature, diet, and why they often die in bowls.
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fish
Koi Fish vs Goldfish: 10 Key Differences
Learn the differences between koi and goldfish including size, appearance, diet, care requirements, and housing needs. Understand which species suits your setup.
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fish
12 Safe Tank Mates for Oranda Goldfish
Find compatible tank mates for your Oranda goldfish. Learn which fancy goldfish varieties, schooling fish, bottom dwellers, and invertebrates can safely share a tank with your Oranda.
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fish
How to Set Up a Goldfish Aquarium the Right Way
The ultimate guide on how to set up a new goldfish aquarium the right way. How to choose the best aquarium, filter, lighting, plants, and tank mates for your goldfish.
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aquariums
Setup Ideas For Your 20 Gallon Fish Tank
Complete guide to setting up a 20 gallon fish tank with equipment checklists, proven fish stocking combinations, compatible species, live plant suggestions, and decoration ideas for freshwater and saltwater setups.
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aquariums
How to Set Up a Small Freshwater Fish Tank
Easy six-step guide to setting up a small freshwater aquarium. Learn proper placement, equipment selection, cycling, fish stocking, and maintenance for a thriving nano tank.
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invertebrates
Cherry Shrimp Care: Complete Guide for Beginners
Everything you need to know about keeping cherry shrimp (Neocaridina davidi). Learn about tank setup, water parameters, feeding, breeding, and compatible tankmates for these colorful freshwater shrimp.
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equipment
The Best LED Lights for Freshwater Aquariums (2026 Guide)
We compared the best LED aquarium lights for freshwater tanks — from planted setups to fish-only displays. Fluval Plant 3.0, Finnex Planted+ HLC, Hygger 957, and NICREW ClassicLED Plus reviewed with specs, pros, cons, and which tanks each light fits best.
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plants
Best Floating Aquarium Plants: Benefits and Top 6 Reviewed
Discover the benefits of floating aquarium plants and find the best species for your tank. Reviews of Water Lettuce, Duckweed, Amazon Frogbit, and more with care tips.
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fish
Betta Tank Mates: The 10 Best Companions for Your Betta Fish
The 10 best betta tank mates that actually work — from peaceful bottom-dwellers to snails and shrimp. Includes tank size requirements, species to avoid, and how to introduce new tank mates safely.
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