Description
Molly – Electric Blue Crystal Eye Roundtail (Pair)
The Electric Blue Crystal Eye Roundtail Molly is a striking ornamental freshwater fish, admired for its vibrant electric-blue colouration, distinctive crystal-clear eyes and beautifully rounded tail. This selectively bred Molly brings brilliant colour and personality to freshwater community aquariums. With its active swimming behaviour and generally peaceful temperament, it makes an excellent addition for both beginner and experienced aquarists. Sold in pairs, these eye-catching livebearers are a fantastic choice for adding something special to your aquarium.
Features of Electric Blue Crystal Eye Roundtail Molly
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Scientific name: Poecilia sphenops (selectively bred variety)
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Common name: Electric Blue Crystal Eye Roundtail Molly
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Origin: Selectively bred ornamental variety
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Adult size: Approximately 6–10 cm
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Temperament: Generally peaceful and active
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Lifespan: Approximately 3–5 years
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Diet: Omnivorous
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Water temperature: 24–28°C
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pH: 7.0–8.5
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Social behaviour: Social livebearers, sold in pairs
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Breeding: Livebearing species
The best aquarium size for Electric Blue Crystal Eye Roundtail Molly
A minimum aquarium size of 75 litres is recommended for a pair, with larger aquariums preferred for community setups. These active swimmers appreciate plenty of open swimming space, stable water conditions and suitable hiding areas.
Tank Mate Compatibility for Electric Blue Crystal Eye Roundtail Molly
These peaceful Mollies are suitable for community aquariums with similarly sized, non-aggressive fish. Suitable tank mates include:
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Guppies
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Platies
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Swordtails
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Corydoras Catfish
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Bristlenose Catfish
Avoid aggressive fin-nipping species and fish that require significantly different water conditions.
Diet for Electric Blue Crystal Eye Roundtail Molly
Electric Blue Crystal Eye Mollies are omnivores that thrive on a varied diet. Feed quality tropical flakes and micro-pellets supplemented with spirulina, blanched vegetables, brine shrimp and daphnia. Vegetable-based foods are particularly beneficial for maintaining digestive health, vibrant colouration and overall condition.
Aquarium Setup Electric Blue Crystal Eye Roundtail Molly
Aquarium Filtration
Provide efficient biological filtration and gentle to moderate water flow. Regular water changes help maintain excellent water quality.
Aquarium Plants
Live plants such as Java Fern, Anubias and Vallisneria provide shelter and natural grazing opportunities.
Aquarium Lighting
Moderate LED lighting helps showcase their beautiful electric-blue colouration.
Aquarium Heating
Maintain a stable temperature between 24–28°C.
Aquarium Substrate
Fine gravel or sand is suitable, with darker substrates helping their blue colouration stand out.
Aquarium Decorations
Incorporate driftwood, smooth rocks and aquatic plants while maintaining plenty of open swimming space. Mollies generally appreciate moderately hard to hard, mineral-rich water.
