How to Draw a Fish Tank

Improve Your Drawing Skills with Printable Practice Sheets!

Draw a great looking Fish Tank with easy, step-by-step drawing instructions and video tutorial. Great for kids and beginner artists!

Fish Tank step-by-step drawing tutorial: step 10
Complete Fish Tank drawing

Jump to the step-by-step instructions.

Would you like to learn how to draw a fish tank cartoon? This easy, step-by-step cartoon aquarium drawing tutorial will help you master the fish tank outline.

An aquarium or fish tank is a glass box used for holding water, fish, and other living creatures. Aquariums house an entire underwater ecosystem in miniature.

Scroll down for a downloadable PDF of this tutorial.

Aquarium keeping has a very long history. The ancient Sumerians built artificial ponds to house fish no later than 4,500 years ago.

The Chinese have also raised fish for thousands of years.

The first glass fish tanks were goldfish bowls created in England during the 1700s. The first modern aquarium was developed in 1832.

Keeping fish is a fun and educational hobby. You can use this tutorial to plan or document your own aquarium.

If you liked this tutorial, see also the following drawing guides: catfish, Coral Reef, and Koi Fish.

Easy, step by step Fish Tank drawing tutorial
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Step-by-Step Instructions for Drawing a Fish Tank

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Fish Tank drawing - step 1
Fish Tank step-by-step drawing tutorial: step 01

1. Begin the fish tank outline by drawing a large rectangle. This indicates the front glass of the aquarium. On top of it, draw a long, narrow trapezoid. This forms the top of the aquarium and gives it a three-dimensional appearance.

Fish Tank drawing - step 2
Fish Tank step-by-step drawing tutorial: step 02

2. Begin creating the underwater scene. Draw small, round, irregular shapes in one corner to indicate a pile of pebbles. Then, draw a wavy curved line along the bottom of the tank, forming the ground or sediment.

From the back corners of the trapezoid, extend vertical straight lines. These indicate the back corners of the aquarium. Notice that they don't go all the way down; the empty spaces will soon be filled with other objects.

Fish Tank drawing - step 3
Fish Tank step-by-step drawing tutorial: step 03

3. Draw the base of the aquarium. Use straight lines to draw the tops of the sides and the sides and bottom of the front. Then, draw a straight, horizontal line across the top of the base.

Fish Tank drawing - step 4
Fish Tank step-by-step drawing tutorial: step 04

4. Next, draw a castle for the fish to hide in. For the turret or tower, start with the triangle-shaped roof. Then, use curved lines for the sides, midsection, and the "U" shaped windows.

Use curved lines to draw the central section of the castle, noting the large "U" shaped door. Texture the castle with full and partial rectangles, simulating bricks.

Fish Tank drawing - step 5
Fish Tank step-by-step drawing tutorial: step 05

5. Draw a watchtower at the top of the castle. Use small trapezoids to create the raised sections of the parapet. Connect them with curved lines, fully enclosing the castle. Then, begin drawing coral. Use curved lines to enclose the branching, tree-like shape. Finally, sketch sand along the side of the aquarium using a curved line.

Fish Tank drawing - step 6
Fish Tank step-by-step drawing tutorial: step 06

6. Complete the coral, using curved lines. Texture it with small "C" shaped lines. Then, draw the sediment at the back and side of the fish tank using a long curved line.

Fish Tank drawing - step 7
Fish Tank step-by-step drawing tutorial: step 07

7. Draw a plant or seaweed. For each leaf, extend two curved lines upward from the sediment. Allow them to cross back and forth over one another, enclosing several segments, before they finally meet at a point.

Use curved lines to enclose and texture a seashell, as well as texturing the sand.

Fish Tank drawing - step 8
Fish Tank step-by-step drawing tutorial: step 08

8. Introduce the fish into their new home! Use curved lines to sketch the fish's mouth, eye, pectoral fin, body, tail, and dorsal fin.

Texture the fins with curved lines. Then, draw a few circular bubbles so that the fish has plenty of air to breathe.

Fish Tank drawing - step 9
Fish Tank step-by-step drawing tutorial: step 09

9. Complete your fish tank outline by drawing the final fish. Follow the same steps as with the previous fish. Enclose a few more bubbles, then use wavy lines to sketch a rectangular shape at the top of the tank. This is the waterline.

Complete Fish Tank drawing
Fish Tank step-by-step drawing tutorial: step 10

Color your cartoon aquarium. We've shaded the aquatic residents orange to indicate that they are goldfish.

Printable Drawing Tutorial

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