Skip to main content

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. 1 fish across 1 species in 600L. Shared temperature 22–30°C. Stocking: understocked (load index 185 vs ref 600).

Common Pleco

Tank preview600L · 1 fish
1× Common Pleco

Your stock

Common Pleco
Common Pleco
60cm · peaceful · 600L min
1
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. 1 fish across 1 species in 600L. Shared temperature 22–30°C. Stocking: understocked (load index 185 vs ref 600).
Score 90/100·Confidence low·Species / centrepiece lean

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 (22–30°C).
  • WaterpH requirements overlap reasonably across the group.
  • StockingEvery listed species has a published minimum tank size at or below 600L.

Water overlap

What every fish can share at the same time

Shared temperature: 22–30°C

Shared pH: 6.5–7.5

Shared temperature range for all species: 22–30°C.

Shared pH window: 6.5–7.5.

Stocking pressure

understocked

Load index 185 vs conservative reference 600 for 600L (adult cm × quantity × bioload weight × territory factor).

Swim-zone distribution

Fish-weighted zone use — top 0.0, middle 0.0, bottom 1.0 (relative biomass per level).

top 0
middle 0
bottom 1

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.