05/28/2026
Did you know: there’s no such thing as “livebearer’s disease”? 🧐 🦠 🐟
Livebearer’s disease is not a formally recognized singular disease, but rather a broad blanket term that covers a *large* range of common identifiable parasites and disease. Livebearing fish are more likely to have these specifically due to their nature (they scavenge and peck at the ground for food where many parasites reside in an infected tank) and because of how they were raised (often in crowded and poor tank conditions in large and busy breeding facilities with frequent cross contamination).
On top of parasites and disease, fish (especially livebearing) often arrive to stores with stressed with weak immune systems from poor prior water conditions which can make them that much more susceptible to becoming infected- *especially* if a store doesn’t quarantine and drops new fish immediately into sale tanks without monitoring and treating for common parasites and disease prior. Many of the parasites out there stay an aquarium *long* after the infecting fish is gone, underscoring why we choose to quarantine.
When someone says “livebearer’s disease”, they actually mean one or more of the following that haven’t been identified yet:
🧫 Internal parasites (there are a ton but the most common are the infamous camalla**s worm + tapeworms…)
🧫 External parasites (most common are: ich, epistylis, velvet…)
🧫 Bacterial infections like columnaris
🧫 Chronic stress
🧫 Tuberculosis
🧫 Poor water chemistry
Typical symptoms lumped into the term “livebearer’s disease”…
🦠 weight loss despite eating
🦠 caved in stomach
🦠 red “threads” hanging out of a fish’s a**s (camalla**s worms)
🦠 white/stringy p**p
🦠 clamped fins
🦠 bent spine
🦠 repeated deaths
🦠 poor fry survival
🦠 lethargy
PS: parasites and diseases can come in on PLANTS, CORALS, decor… anything from an infected tank- not just fish. This is why we are so extra. Quarantine your fish. Dip your plants. Dip your corals. 🌈⭐️
🧐What are some other myths you’ve heard of?