Fishkeeping Guides

    Expert-written fishkeeping guides — browse by water type, chapter, and level. Prefer watching? See our video guides.

    First Aquarium Setup: A Day-by-Day Beginner's Guide

    First Aquarium Setup: A Day-by-Day Beginner's Guide

    Set up your first aquarium the right way. A day-by-day beginner's guide through cycling your tank, the 6-week wait, and choosing your first fish without losing any.

    19 min read

    aquarium for beginnersfish tank setupnitrogen cycle
    What Size Aquarium Should a Beginner Start With?

    What Size Aquarium Should a Beginner Start With?

    Why bigger aquariums are easier for beginners, not harder. The recommended starting size, why tiny tanks are a trap, and how to choose for your space.

    6 min read

    tank sizegetting startedbeginner aquarium
    How Much Does a Fish Tank Cost to Set Up and Run?

    How Much Does a Fish Tank Cost to Set Up and Run?

    What a fish tank really costs to set up and run: upfront gear, ongoing electricity and supplies, where to spend vs save, and the "buying twice" trap to avoid.

    7 min read

    costbudgetgetting started
    What Equipment Do You Actually Need (vs. Store Upsells)?

    What Equipment Do You Actually Need (vs. Store Upsells)?

    The short list of aquarium equipment you actually need vs. the upsells stores push. Essentials, situational gear, and the additives you can skip.

    6 min read

    equipmentgetting startedfilter
    Glass vs. Acrylic: Which Tank Should You Buy?

    Glass vs. Acrylic: Which Tank Should You Buy?

    Glass vs acrylic aquariums compared: cost, weight, scratches, clarity, and shapes. Why glass is the sensible beginner default—and when acrylic wins.

    6 min read

    glassacrylictank choice
    Where to Place Your Aquarium at Home

    Where to Place Your Aquarium at Home

    Where to place a fish tank: avoid direct sunlight, use a sturdy level surface, mind temperature and access. The placement rules that prevent algae and stress.

    6 min read

    placementgetting startedsunlight
    Setting Up the Stand: Leveling and Weight Safety

    Setting Up the Stand: Leveling and Weight Safety

    Aquarium stand and leveling safety: how heavy a full tank really is, choosing a rated stand, why a level flat surface prevents cracks, and safe setup order.

    6 min read

    standlevelingweight safety
    How Does the Aquarium Nitrogen Cycle Work? A Beginner's Guide

    How Does the Aquarium Nitrogen Cycle Work? A Beginner's Guide

    The aquarium nitrogen cycle explained simply for beginners—how fish waste turns from toxic ammonia into safe nitrate, and the 3 rules to protect it.

    6 min read

    nitrogen cycleaquarium for beginnersfishkeeping
    How to Speed Up the Nitrogen Cycle in Your Aquarium

    How to Speed Up the Nitrogen Cycle in Your Aquarium

    Speed up your aquarium's nitrogen cycle and cut weeks off the wait. Seeding filter media, bottled bacteria, live plants, and the mistakes to avoid.

    7 min read

    nitrogen cycletank cyclingfishless cycle
    How do I know if my tank is fully cycled?

    How do I know if my tank is fully cycled?

    Learn the exact test results that prove your aquarium is cycled: ammonia 0, nitrite 0, nitrate present—plus the 24-hour test that removes all doubt.

    7 min read

    nitrogen cycletank cyclingwater testing
    What Is Ghost Feeding, and How Does It Help Cycling?

    What Is Ghost Feeding, and How Does It Help Cycling?

    Ghost feeding means feeding an empty tank so rotting food fuels your cycle. Here's how it works, how to do it right, and the mistake to avoid.

    7 min read

    ghost feedingfishless cyclenitrogen cycle
    Fish-In vs. Fish-less Cycling: Which Is Right for You?

    Fish-In vs. Fish-less Cycling: Which Is Right for You?

    Fish-in vs Fish-less cycling compared: which is safer, faster, and right for your tank—plus how to protect fish if you're already mid-cycle.

    6 min read

    nitrogen cyclefishless cyclefish-in cycle