Plan your aquarium, then prove it will thrive

Ecosym is two complementary tools for aquarium hobbyists. First, the stocking planner can tell you what fits in your tank and is compatable. Then, the state of the art ecosystem model can tell you how your tank will cycle and stabilize over the following months given your exact setup and intended maintenence.

Plan

What fits my tank?

Pick a tank size and see every fish and invertebrate that fits it. Assemble a stocking plan which will thrive with certain water chemistry, view the group sizes required for each species, and ensure your inhabitants wont eat each other (along with other species specific warnings).

Built on data from The Fishkeeping Network and The Aquarium Wiki. Free to plan any number of tanks.

Prove

Will it thrive?

Tell EcoSym about your water, substrate, plants, filter, lighting, and more. It runs a mechanistic ecosystems model to determine if and (roughly) when your tank will cycle, how your water parameters might change over time, and if your tank will be stable or problematic for your livestock long term.

A stocking plan can tell you which species are possible to keep in your tank, only the simulator can tell you if they will thrive in your specific setup.

The science behind it

The simulator tracks nutrients as they move between the water, substrate, and living things (plants, animals, and microbes) in your tank by solving the checmistry and biology which links them. The documentation explains that science in depth, and everything described there is part of the model.

How EcoSym works →