Breeding Aquarium Fish: Basics for Clownfish, Bettas, Livebearers
Breeding aquarium fish is rewarding + profitable - a successful clownfish pair can produce $200-400 worth of fry monthly. Here are the species accessible to home breeders.
Easiest fish to breed (start here)
- Guppies, platies, mollies, swordtails (livebearers) - drop fry every 30 days with no intervention
- Endler's livebearer - smaller, faster reproducing, higher value at $5-15 per fish
- Convict cichlids, kribensis - cave spawners, parents raise fry
- Corydoras (sterbai, panda) - egg scatterers, easy with conditioning
- Bettas - bubblenest builders, intermediate difficulty
Breeding tank setup
Dedicate a 10-20g tank. Bare bottom OR fine sand. Sponge filter (gentle - won't suck up fry). Heater + dim light. Hide structures: java moss, terra cotta caves, spawning mops.
Conditioning the pair
Feed live foods (blackworms, baby brine, frozen mysis) 2-3x daily for 2-3 weeks. Female should be plump with eggs. Male shows breeding colors.
Triggers: water change with cooler water (-2°F), increased food, separated and reintroduced after 1 week.
Clownfish breeding
Pair: 1 large + 1 small (clownfish are sequential hermaphrodites - largest becomes female). Give them a flat clay tile near a host anemone or ceramic pot. They lay eggs every 12-16 days once mature.
Hatch larvae after 7-9 days (dark cycle triggers hatch). Move tile to a 10g rearing tank with rotifers + greenwater. Day 8-15 introduce baby brine. Day 30 weaning to pellets.
Betta breeding
Conditioning: 2 weeks of high-protein food. Place female in a clear container in male's tank for 3-4 days (visual contact, no contact). Release when male builds bubble nest + female has vertical bars.
After spawn: REMOVE FEMALE (male attacks her). Male tends nest 2-3 days. Remove male after fry are free-swimming. Feed infusoria → BBS.
Livebearer breeding (zero effort)
Place a male + 2-3 females in a 10g+ planted tank. Females drop fry every 28-35 days. Add a breeder box or heavy plant cover (java moss, frogbit) - fry hide in plants.
Adults eat fry without cover. Separate fry to grow-out tank at 1 week old. Feed crushed flake + microworms.
Selling fry
Local fish stores: store credit at $0.50-2 per fish for common species, $5-10+ for premium (designer guppies, plakat bettas, F1 wild bettas). Aquabid + Aquaswap: ship via FedEx priority overnight. Designer betta lines $20-200 each. Forums + Facebook groups: local pickup, build reputation.
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