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Behind Glass: Aquarium Simulator official game artwork

THE PRACTICAL GUIDE

Behind Glass: Aquarium Simulator Guide

Create stunning virtual aquariums on your PC! Our advanced 3D engine brings your fish tank to life with breathtaking realism, featuring lifelike fish, plants, decorations, and more. Transform your monitor into

Steam ↗Windows · macOS
GameWiki Pro EditorialReviewed 5 guide topics

GET YOUR BEARINGS

Plan your next Behind Glass: Aquarium Simulator session

Our independent guide helps you get the most out of Behind Glass by highlighting creative strategies, scientific considerations, and platform tools. Use these observations to refine your aquascaping workflow, compare design choices, and make the most of the game’s open‑ended features.

01 / THE GUIDE

Contrast Planning

Lay out a basic tank shape, then experiment with contrasting plant colors and décor shapes. Compare how different palettes affect the perceived depth and focus of your aquarium.

  • Start with a simple layout before adding complex structures to gauge visual balance.
  • Use contrasting plant colors to highlight focal fish species.

02 / THE GUIDE

Species Compatibility Test

Select a small group of fish with similar size and behavior. Observe their animations together, noting any visual harmony or clash, then adjust the lineup accordingly.

  • Group similarly sized fish to reduce visual clutter.
  • Observe each species' movement patterns for optimal placement.
Behind Glass: Aquarium Simulator official gameplay screenshot
Publisher-provided gameplay image · BitBros Inc

03 / THE GUIDE

Parameter Tuning

Start with neutral pH and salinity, then incrementally modify one value at a time. Record the changes in fish activity to understand the impact of each parameter.

  • Start with neutral pH values and modify gradually.
  • Record parameter changes to track their impact on fish health.

04 / THE GUIDE

Designer Mode Sketch

Use Designer Mode to draft a complex layout without worrying about fish needs. Once satisfied, try recreating a similar layout in a regular tank and re‑evaluate any necessary adjustments.

  • Use Designer Mode to prototype complex arrangements.
  • Experiment freely with décor placement without worrying about fish needs.

05 / THE GUIDE

Workshop Integration

Browse the Steam Workshop for community‑created decorations. Import a few items, place them in your tank, and compare how they integrate with your existing aesthetic.

  • Enable Steam Cloud to keep your aquariums synced across devices.
  • Browse the Workshop for fresh décor ideas.

WATCH THE GAME

Behind Glass: Aquarium Simulator videos

Official trailers & gameplay

INSIDE THE WORLD

Screenshots & game images

5 official screenshots

IN THIS WIKI

Your reading checklist

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QUICK ANSWERS

Behind Glass: Aquarium Simulator FAQ

Can I access all fish species from the beginning?

Yes, every fish, crab, turtle, and axolotl is available immediately without any unlocking or grinding.

Does the game support both freshwater and saltwater tanks?

Both tank types are offered, each with its own visual style and water‑parameter requirements.

Is there a mode that removes gameplay constraints?

Designer Mode lets you build without limits, focusing purely on aesthetics and layout.

More Behind Glass: Aquarium Simulator guides

SOURCES & CREDITS

Official resources and further reading

Original editorial guidance. Game imagery and trailers are provided by the publisher through Steam. Media and reference links checked 2026-10-24. Game versions, supported platforms, and balance can change; consult the linked release notes for current details.