Least Killifish (Heterandria formosa) Medium (Aquarium Glaser)
Least Killifish (Heterandria formosa) Medium (Aquarium Glaser) is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
Product Refunds & Returns
- Returns can be processed within 14 days from purchase.
- To return products, they must be in original condition
- Shipping expenses are not refundable
- If your items have been damaged in shipping, please contact us within 24 hours of receipt with photos, and we will assist you.
Dead on Arrival (DOA) Policy – Shipped Orders Only
- We guarantee live arrival on all shipped livestock when:
- The package is received on the first delivery attempt.
- Clear photos of the unopened shipping bag and deceased animal are emailed to us within 2 hours of delivery confirmation.
- If these conditions are met, we will provide a replacement or store credit. Shipping charges are non-refundable.
7-Day Livestock Guarantee (Local & Shipped Orders)
- We guarantee our livestock for 7 days from purchase/delivery if our care recommendations and tank requirements were followed.
- Proof Required: We may require photos of the deceased animal, proof of purchase (receipt/order number), and/or a water sample from your tank for testing.
Livestock Refunds, Returns, & Surrenders
- Local customers may return livestock within 72 hours of purchase for a refund, provided the animal is alive and in original condition. Returns must be brought to the store; we do not provide pickup services.
Least Killifish (Heterandria formosa) Medium (Aquarium Glaser)
Description
Description
Least Killifish (Heterandria formosa) is a fascinating aquatic creature.
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Size and Uniqueness:
- The least killifish is one of the smallest fish species in the world.
- Males reach a mere 1.2 inches in length, while females can grow up to 1.5 inches
- Despite their small size, they are hardy, adaptable, and surprisingly social.
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Natural Habitat:
- These tiny fish are predominantly found in freshwater environments, but they can also survive in brackish conditions.
- In the wild, least killifish inhabit sluggish waterways, stagnant ponds, and areas with marginal plants or heavy vegetation.
- Their natural range includes the coastal lowlands of Alabama and South Pine Hills1.
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Tank Requirements:
- Due to their diminutive size, least killifish can thrive in small aquaria.
- A 5-gallon aquarium is sufficient if you’re keeping them alone.
- For a larger colony or tank mates, consider a 10-gallon tank.
- These fish aren’t great jumpers, so you can even keep them without a lid.
- Decorate the tank with lots of plants (avoid spider wood) and provide hiding spots using materials like dragon stones.
- Use sand or river stones as substrate, and consider stabilizing the pH level with limestones, crushed coral, or Texas holey rock1.
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Diet and Adaptability:
- Least killifish are omnivorous and can adapt to various water conditions.
- They’ll happily feed on live or frozen foods, including small insects, daphnia, and flake foods.
- Their hardiness makes them ideal for beginner breeders and those with smaller tanks
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