How to make the right stocking decisions with App-aquatic

Before you change your plan, run the numbers in our free aquarium stocking calculator.

Start with your real tank setup

Enter accurate tank size, filtration, and current stock in App-aquatic. Stocking recommendations only help when the base setup is realistic.

Check compatibility first

Before adding any species, review temperament, preferred parameters, and likely conflict patterns. Do not rely on one-off store advice alone.

Validate group sizes and swim zones

Many fish need proper schools. App-aquatic makes it easier to see if your mix is top-heavy in one swim zone or undergrouped for social species.

Add fish in stages

• Add one group at a time, then observe and test.
• Use logs to confirm water and behavior stability.
• Avoid large stocking jumps that spike bioload.

Use diagnostics as a decision gate

If diagnostics flag risk, pause additions and correct setup issues first. A delayed purchase is better than a stressed or unstable tank.

Related guides

• How to cycle a fish tank
• How to set up a fish tank
• Aquarium water parameters