Set your tank, choose livestock, and inspect water overlap, group-size context, and compatibility reasons. Planning guidance is not a guarantee of animal welfare.
Planning guidance, not a guarantee. GREEN means no rule flagged a conflict, not proven safety. Pair-specific items still under review are labeled separately.
01Tank conditions
Enter your tank's actual water volume. Changing units affects the display, not the stored capacity or compatibility results.
Length is used only for proportional adult-size diagrams, not compatibility outcomes.
02Your livestock
Paracheirodon innesi · recorded adult 1.5 in. 8 selected / 6+ recorded group minimum — met.
Hoplisoma panda (formerly Corydoras panda) · recorded adult 2 in. 6 selected / 6+ recorded group minimum — met.
Trichogaster chuna · recorded adult 2.3 in. 1 selected — conditional alone; suitable in a peaceful, well-planted tank, but not the preferred social setup in all husbandry guidance.
Up to six unique species, 1–40 animals each. New or replaced species start at one; enter real counts.
Illustration options — not used in safety rules
03See your aquarium
YOUR LIVING AQUARIUM30 US gal · 15 animals
A lively illustration · approximate swimming zones
3 species · 15 individual animals pictured
Neon Tetra × 8middle water · illustration
Panda Corydoras × 6bottom water · illustration
Honey Gourami × 1top water · illustration
Fish colors, shape, position and swimming are artistic approximations, not a photograph, scale model or proof of compatibility. See the separate adult-size ruler and safety findings.
Every selected animal is illustrated individually. Swimming zones are approximate; colors, species depictions, current and plant movement do not change compatibility decisions. Flow: moderate.
Species3 / 6
Pairwise checks3
Estimated load75%
Current stocking estimate: GREEN · quantity-aware load. Different from the pair engine's count-blind verdicts. Tank maturity and care are not proven.
Anonymous URL-fragment sharing; no account or plan database. Maximum fragment length 2,400 characters. Anyone holding the link can read the plan.
Understand the reasons
See what needs a closer look.
Water overlap
Recorded temperature ranges. The outlined band is their common interval; overlap alone does not establish safe cohabitation.
72 °F81 °F
Neon Tetra: 72–78 °F
Panda Corydoras: 72–77 °F
Honey Gourami: 72–81 °F
Shared interval: 72–77 °F.
Panda Corydoras + Honey Gourami: reviewed as temperature-managed/conditional. Aim around 73–75 °F; 76–77 °F is still within the published overlap but is the Panda's warm edge. Avoid sustained temperatures above 77 °F.
pH: 6–7.5 · GH: 2–10 dGH. Scientific interpretation and source provenance remain under review.
Adult-size ruler
Full track = 36 in tank length. Bars use true proportions; this is not a swimming-space or stocking requirement.
036 in
Neon Tetra1.5 in · 4.2% of length
Panda Corydoras2 in · 5.6% of length
Honey Gourami2.3 in · 6.3% of length
Recorded sizes may vary; species-specific evidence quality and husbandry assumptions require review.
Pairwise compatibility explanations
Engine verdict, pending scientific review, and this plan's actual group counts are separate. These are reference rule outputs, not approved stocking advice.
Neon Tetra + Panda Corydoras
ENGINE: YELLOW
Current reference rule result; conditions need inspection.
The pair engine includes a generic group-size reminder. Actual counts appear below; the verdict is unchanged.
Neon Tetra: Group minimum met — 8 selected / 6+ recorded group minimum — met.
Panda Corydoras: Group minimum met — 6 selected / 6+ recorded group minimum — met.
The pair engine does not receive quantities; the separate stocking estimate can evaluate entered counts.
Current pair minimum: 20 US gal. Recorded shared temperature: 72–77 °F.
Generic-rule output; no pair-specific citation returned. Source traceability pending.
All reasons, rule notes & sources
schooling size issue (yellow): Neon Tetra should be kept in a group of at least 6, not as a single add-on.
schooling size issue (yellow): Panda Corydoras should be kept in a group of at least 6, not as a single add-on.
Neon Tetra + Honey Gourami
ENGINE: YELLOW
Current reference rule result; conditions need inspection.
The pair engine includes a generic group-size reminder. Actual counts appear below; the verdict is unchanged.
Neon Tetra: Group minimum met — 8 selected / 6+ recorded group minimum — met.
Honey Gourami: Conditional alone — 1 selected — conditional alone; suitable in a peaceful, well-planted tank, but not the preferred social setup in all husbandry guidance.
The pair engine does not receive quantities; the separate stocking estimate can evaluate entered counts.
Current pair minimum: 10 US gal. Recorded shared temperature: 72–78 °F.
Generic-rule output; no pair-specific citation returned. Source traceability pending.
All reasons, rule notes & sources
schooling size issue (yellow): Neon Tetra should be kept in a group of at least 6, not as a single add-on.
Panda Corydoras + Honey Gourami
ENGINE: YELLOWREVIEWED: CONDITIONAL
Current reference rule result; conditions need inspection.
Why: Compatible with temperature management. Their published temperature ranges overlap at 72–77°F (22–25°C). For a balanced long-term setting, aim around 73–75°F (23–24°C). 76–77°F remains within the overlap but is the warm edge for Panda Corydoras; avoid sustained temperatures above 77°F.
Panda Corydoras: Group minimum met — 6 selected / 6+ recorded group minimum — met.
Honey Gourami: Conditional alone — 1 selected — conditional alone; suitable in a peaceful, well-planted tank, but not the preferred social setup in all husbandry guidance.
The pair engine does not receive quantities; the separate stocking estimate can evaluate entered counts.
Current pair minimum: 20 US gal. Recorded shared temperature: 72–77 °F.
schooling size issue (yellow): Panda Corydoras should be kept in a group of at least 6, not as a single add-on.
searched pair caution (yellow): Compatible with temperature management. Their published temperature ranges overlap at 72–77°F (22–25°C). For a balanced long-term setting, aim around 73–75°F (23–24°C). 76–77°F remains within the overlap but is the warm edge for Panda Corydoras; avoid sustained temperatures above 77°F.
These diagrams use existing species data and current rule outputs. Pair verdicts were not recalculated or scientifically approved. Review existing methodology and compatibility checker.
Read the visual explanation guide
The visual guide explains the water, size, swimming-zone, and uncertainty displays.