Species Library — All Species
| Species | Adult size | Temperament | Min tank | Care | Accuracy |
|---|---|---|---|---|---|
| Kamaka Rainbowfish Melanotaenia kamaka | 7–9 cm | Peaceful | 150 L | Moderate | Verified |
| Kenyi Cichlid Maylandia lombardoi | 9–12.5 cm | Aggressive | 240 L | Moderate | Verified |
| Keyhole Cichlid Cleithracara maronii | 8–12.5 cm | Peaceful | 120 L | Easy | Verified |
| King Tiger Pleco Hypancistrus seideli | 10–14.5 cm | Peaceful | 150 L | Moderate | Verified |
| Kitty Tetra Hyphessobrycon heliacus | 3–4 cm | Peaceful | 60 L | Moderate | Verified |
| Knight Goby Stigmatogobius sadanundio | 6–10 cm | Semi aggressive | 100 L | Moderate | Verified |
| Kribensis Pelvicachromis pulcher | 6–10 cm | Semi aggressive | 100 L | Easy | Verified |
| Kribensis Hybrid Pelvicachromis hybrid | 6–10 cm | Semi aggressive | 80 L | Easy | Verified |
| Kubotai Rasbora Microdevario kubotai | 1.8–2 cm | Peaceful | 45 L | Moderate | Verified |
| Kuhli Loach Pangio kuhlii | 7–12 cm | Peaceful | 80 L | Moderate | Verified |
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