Stocking plan
Plan a freshwater tank stocking
Set volume, add species with the numbers you actually plan to keep, and get a conservative verdict for the whole stocking — bioload, group size, zone crowding, and multi-species conflicts, not a single pair in isolation. Use the editor first; the planning notes below explain why a pairwise match still needs a tank-level check.
Shared plan · CAUTION
Marginal overall fit — conservative rules do not call this a clear win; simplify the list or increase margin (space, filtration, observation time). Review supporting points next, then re-run the check.
Primary issue: Marginal overall fit — conservative rules do not call this a clear win; simplify the list or increase margin (space, filtration, observation time). Single-species or centrepiece lean — fewer cross-species surprises; match temperature and pH tightly to that fish. 6 fish across 1 species in 40L. Shared temperature 24–28°C. Stocking: balanced (load index 32 vs ref 40).
Your stock
Marginal overall fit — conservative rules do not call this a clear win; simplify the list or increase margin (space, filtration, observation time). Review supporting points next, then re-run the check.
Low confidence — small list or thin data; use this as a starting checklist, not a final word.
Pair compatibility for any two species · Fish library
Positives
- WaterTemperature ranges overlap comfortably (24–28°C).
- WaterpH requirements overlap reasonably across the group.
- StockingEvery listed species has a published minimum tank size at or below 40L.
Water overlap
What every fish can share at the same time
Shared temperature: 24–28°C
Shared pH: 6.5–7.5
Shared temperature range for all species: 24–28°C.
Shared pH window: 6.5–7.5.
Stocking pressure
balanced
Load index 32 vs conservative reference 40 for 40L (adult cm × quantity × bioload weight × territory factor).
Swim-zone distribution
Fish-weighted zone use — top 0.0, middle 6.0, bottom 0.0 (relative biomass per level).
Most biomass leans toward one swim level — shy fish may feel exposed or outcompeted at feeding time.
Fix this setup
Grouped by scenario — work through each block in order
Layout & swim zones
- 1.Add structure (caves, tall plants) and consider species that use under-represented zones.
Beginner difficulty
moderate
- Includes intermediate species — stable parameters matter.
Fish behaviour varies. Fishori gives conservative planning guidance based on adult size, temperament, tank size and common aquarium care sources.