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Your tank 15 ft

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0 ft Experience First tank Change

15 ft

Your tank

Pick the size first. Plants, a strong filter and frequent water changes all give the fish a little more room.

Size

2.5 gallons 12 in long 5 gallons 16 in long 10 gallons 20 in long 15 gallons 24 in long 20 gallons 24 in long 20 gallons Long 30 in long 29 gallons 30 in long 40 gallons Breeder 36 in long 55 gallons 48 in long 75 gallons 48 in long 90 gallons 48 in long 125 gallons 72 in long 180 gallons 72 in long Another size Type it below

Volume, in gallons Length, in inches

Please choose a tank size, or type its volume, before going on.

Plants

No plants Lightly planted Moderately planted Heavily planted

Please choose how planted the tank will be before going on.

Filter

Little or none Standard filter Oversized or sump Not sure yet

Please choose a filter, or Not sure yet, before going on.

Water changes

Monthly or less Weekly Twice a week or more Not sure yet

Please choose how often the water is changed, or Not sure yet, before going on.

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— out of 100

Your score starts with your first fish.

Your score starts with your first fish.

Planting

For a 10-gallon tank. Choose your tank's size and the numbers follow it.

No plants: The clean look. Plastic plants count as none.
Lightly planted: A touch of green, about 1–2 plants.
Moderately planted: A proper green backdrop, about 3–4 plants across the back and the middle.
Heavily planted: A jungle. More than 4 plants, from a carpet in front to tall ones at the back.

Filter

Most filter boxes say which tank sizes they are made for, such as “20 to 30 gallons”.

Little or none: Running light, with no filter or one made for a smaller tank.
Standard filter (the default if left blank): The usual, one filter whose box includes your tank’s size.
Oversized or sump: Going big, with a filter made for a bigger tank, two filters, or a sump.

Water changes

How often some of the tank’s water is swapped for fresh, treated water.

Monthly or less: For the laid-back keeper.
Weekly (the default if left blank): The classic routine, and the one most keepers settle into.
Twice a week or more: For the full-time fish keeper.

Your tank so far