Deep Water Creek Rainbows

The Deep Water Creek Rainbowfish (Melanotaenia splendida) is a beautiful and active rainbowfish variety known for its iridescent scales and graceful swimming behavior. These peaceful schooling fish display a shimmering array of colors that change with the light and viewing angle. With their streamlined bodies and elegant fins, Deep Water Creek Rainbows add both color and constant movement to any aquarium. Hardy, easy to care for, and visually stunning, they are excellent choices for planted community tanks where their schooling behavior can be fully appreciated.

Care Sheet – Deep Water Creek Rainbowfish (Melanotaenia splendida)

Temperament

• Peaceful, active schooling fish

• Best kept in groups of 6 or more for natural behavior

Adult Size

• 4–5 inches

Minimum Tank Size

• 30 gallons for a small school

Water Parameters

• Temperature: 75–82°F

• pH: 7.0–8.0

• Hardness: Moderate to hard (8–15 dGH)

• Ammonia/Nitrite: 0 ppm

• Nitrate: <20–30 ppm

Diet

• Omnivorous

• Feed a varied diet:

  • High-quality flakes or pellets

  • Frozen or live foods: brine shrimp, daphnia

  • Color-enhancing foods to maintain vibrant colors

• Feed small amounts 1–2 times daily

Behavior & Compatibility

• Excellent for peaceful community tanks

• Compatible with:

  • Other rainbowfish, larger tetras, peaceful barbs

  • Corydoras and other bottom dwellers

  • Peaceful gouramis and dwarf cichlids

• Avoid aggressive or fin-nipping species

Aquarium Setup

• Planted tanks with open swimming space

• Moderate water flow

• Clean, well-oxygenated water

• Bright lighting to showcase iridescent colors

Care Level

• Easy to moderate

• Hardy and adaptable

Lifespan

• 5–8 years with proper care

Special Notes

• Iridescent scales that change color with light and angle

• Very active swimmers that school tightly

• Colors intensify with age and proper nutrition

• Peaceful addition to larger community aquariums