Installation

In Blender open Edit, Preferences, Get Extensions, then use Install from Disk and pick the aquarium_generator zip.

Usage

1. Open the Aquarium tab in the 3D viewport sidebar (N), click the design picture to pick an aquascape, then Add Aquarium. It appears at the 3D cursor.
2. With the aquarium selected, the part tabs change it: Tank (kind, size, lid, stand), Equipment (light, filter, heater, CO2), Substrate, Hardscape (stones, driftwood, ornaments), Plants and Fish. The aquarium rebuilds live.
3. Reshuffle gives a new random layout of the same design; Seed brings a layout back. Reset to Design restores the picked design.
4. Water effects (tint, haze, caustics, particles) and Aging (algae, moss, dirt, lime) are sliders in their panels.
5. Press Play to watch the fish swim; the loop is seamless for animation renders. Turn Swimming off for one still mesh.
6. Convert to Plain Objects keeps the result as ordinary meshes; Delete Aquarium removes it with all its parts.