App-aquatic guide

How to make the right stocking decisions with App-aquatic

Plan before you buy fish. App-aquatic helps reduce risk by checking compatibility and balance early.

⏱ 3 min read 📐 Stocking 📅 Updated March 2026
Quick answer
  • 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 …
  • Check compatibility first: Before adding any species, review temperament, preferred parameters, and likely conflict patterns. Do not rely on one-off store ad…
  • 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 so…
  • Add fish in stages: If diagnostics flag risk, pause additions and correct setup issues first. A delayed purchase is better than a stressed or unstable…

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.

Keep learning

Stable aquariums come from consistent testing and patient stocking. Continue with our water parameters guide, how to cycle a tank, and combining fish safely. For logging and strip scans, see App-aquatic.

Log parameters, scan strips offline, and run stocking checks with App-aquatic.

Get the free app

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?

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

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.

Free stocking calculator · More guides · Overstocking · Combining fish