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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. 5 fish across 1 species in 40L. Shared temperature 18–28°C. Stocking: balanced (load index 33 vs ref 40).

Ghost Shrimp

Tank preview40L · 5 fish
5× Ghost Shrimp

Your stock

Ghost Shrimp
Ghost Shrimp
4cm · semi-aggressive · 40L min
5
VerdictCAUTION

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. 5 fish across 1 species in 40L. Shared temperature 18–28°C. Stocking: balanced (load index 33 vs ref 40).
Score 90/100·Confidence low·Species / centrepiece lean

One or more species profiles are only partially verified or need verification — treat numbers as planning guidance, not guarantees. At least one species has ID or trade-name ambiguity on file — plan for a typical trade example, not every shop label.

Pair compatibility for any two species · Fish library

Positives

  • WaterTemperature ranges overlap comfortably (18–28°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: 18–28°C

Shared pH: 7.0–8.0

Shared temperature range for all species: 18–28°C.

Shared pH window: 7.0–8.0.

Stocking pressure

balanced

Load index 33 vs conservative reference 40 for 40L (adult cm × quantity × bioload weight × territory factor).

Swim-zone distribution

Fish-weighted zone use — top 0.0, middle 2.5, bottom 2.5 (relative biomass per level).

top 0
middle 3
bottom 3

Beginner difficulty

easy

    Fish behaviour varies. Fishori gives conservative planning guidance based on adult size, temperament, tank size and common aquarium care sources.