How Often Should You Feed Live Food to Fry?
A Feeding Guide for Faster Growth and Higher Survival Rates
When raising fish fry, one of the most common questions is: How often should live food be fed? The answer depends on the species, age of the fry, and the type of food being offered. However, one thing is consistent across nearly all freshwater species—frequent feedings of quality live foods result in faster growth, stronger immune systems, and higher survival rates.
At Lane Aquatics, live foods such as brine shrimp and micro worms are used regularly to maximize fry development during their most critical growth stages.
Why Live Food Matters
Newly hatched fry have small stomachs and high energy demands. Unlike adult fish, they cannot consume large meals and then go hours without eating.
Live foods provide:
High protein content
Natural feeding stimulation
Improved growth rates
Better coloration development
Increased survival rates
Enhanced breeding potential later in life
For many species, live foods closely mimic what fry would consume in nature.
General Fry Feeding Schedule
Newly Free-Swimming Fry (Days 1–7)
Feed 3–5 times per day.
Recommended foods:
Micro worms ( check out my blog on Micro Worm Culture Setup & Maintenance Guide)
Newly hatched brine shrimp
Other appropriately sized live foods
The goal during this stage is to provide a constant supply of nutrition without overfeeding.
Growing Fry (Weeks 2–4)
Feed 3–4 times per day.
Recommended foods:
Newly hatched brine shrimp
Micro worms
High-quality powdered fry foods
As fry grow, their stomach capacity increases, allowing them to consume larger meals.
Juvenile Fish (1–3 Months)
Feed 2–3 times per day.
Recommended foods:
Brine shrimp
High-quality pellets
Frozen foods
Finely crushed flake foods
At this stage, live food can be used to accelerate growth and condition future breeders.
Is More Feeding Always Better?
Not necessarily.
The best approach is:
Feed small amounts frequently
Remove uneaten food when possible
Maintain excellent water quality
Perform regular water changes
Overfeeding can quickly lead to poor water quality, which often causes more problems than underfeeding.
Brine Shrimp vs. Micro Worms
Micro Worms
Best for:
Very small fry
Newly free-swimming fish
Species with tiny mouths
Advantages:
Easy to culture
Available year-round
Excellent first food
Brine Shrimp
Best for:
Rapid growth
Developing fry
Most freshwater species
Advantages:
High nutritional value
Excellent growth rates
Strong feeding response
Many breeders use both foods together for maximum results.
Signs Fry Are Being Fed Correctly
Healthy fry should:
Have visibly rounded bellies after feeding
Grow consistently each week
Display active swimming behavior
Show strong coloration as they mature
Experience low mortality rates
If fry appear thin, inactive, or slow-growing, feeding frequency may need to be increased.
Lane Aquatics Recommendation
For most freshwater fry, we recommend:
Week 1
Feed live foods 4–5 times daily.
Weeks 2–4
Feed live foods 3–4 times daily.
Juveniles
Feed 2–3 times daily while gradually introducing prepared foods.
Consistent feeding combined with excellent water quality is one of the most effective ways to improve fry survival and growth rates.
Final Thoughts
Live foods remain one of the most valuable tools available to fish breeders. Whether you're raising angelfish, guppies, plecos, corydoras, or cichlids, frequent feedings of freshly hatched brine shrimp and micro worms can dramatically improve results.
Remember: successful fry rearing is not about feeding more food—it's about feeding the right food at the right frequency.
Want to improve fry growth and survival rates? Check out our guide:
Newly hatched brine shrimp are one of the most effective live foods for promoting rapid growth and healthy development in fish fry. If you're not currently using them, read our guide on Why Newly Hatched Brine Shrimp Are the Gold Standard for Fish Fry to learn why we rely on them.