Threadfin Rainbowfish Medium Large

Threadfin Rainbowfish Care Sheet

Overview

Tank Setup

Tips:

• Keep in schools of at least 68 to display natural behavior.

• Provide plenty of plants for cover and security.

• Gentle water movement mimics natural stream habitats.

Diet

• Type: Omnivorous / micropredator

• Best Foods: Micro-pellets, finely crushed flakes, live/frozen foods (daphnia, baby brine shrimp, microworms).

• Feeding Frequency: 12 times daily; feed small amounts to prevent overfeeding.

Behavior & Compatibility

• Peaceful and shy; males display long, delicate fins when mature.

• Mid- to upper-level swimmers; enjoy planted aquariums with open swimming lanes.

• Best kept with other small, non-aggressive fish.

Tank Mate Guide

Compatible Species

• Small tetras (neon, ember)

• Rasboras (chili, harlequin)

• Pygmy Corydoras

• Other small, peaceful rainbowfish

Avoid or Use Caution With

• Larger or aggressive fish

• Fin-nippers (barbs, aggressive tetras)

• Fast-moving fish that stress them

Breeding Info

• Spawning Method: Egg scatterers; use fine-leaved plants or spawning mops.

• Parental Care: None; adults may eat eggs.

• Fry Care: Feed infusoria or microworms first, then baby brine shrimp or crushed flakes.

Fun Facts

• Named for its thread-like fins in males, which are long and elegant.

• Extremely delicate and peaceful, ideal for planted nano or community tanks.

• Shows off best in small, calm groups in well-planted aquariums.