Preparation
1Thaw your bloodworm and brine shrimp cubes in separate cups of tank-temperature water. Once soft, drain them through a fine mesh net and press out the excess liquid. You want the actual organisms, not the broth.
2Mash the bloodworms and brine shrimp together with a fork until you get a chunky paste. Stir in the spirulina powder and garlic juice until everything is evenly mixed — it should look like a tiny bowl of pink-green pesto.
3Dissolve the gelatin in warm (not boiling) water, let it cool for 2 minutes, then fold it into the protein paste. Spread the mixture thin on a piece of plastic wrap, roll it into a log shape, and refrigerate for at least 1 hour until it sets. Slice off pea-sized blobs as needed.
Best Time to Serve
Twice daily for 1-2 weeks before intended spawning
Purpose
Breeding fish need to be in peak physical condition — plump, vibrant, and absolutely bursting with reproductive energy. This paste is the fish equivalent of a training montage. It concentrates high-quality proteins and fatty acids that trigger the hormonal cascade leading to egg development and milt production. You're basically setting the table for romance.
When to Use
Use this 1-2 weeks before you want to attempt breeding. Works for livebearers (guppies, mollies), egg scatterers (tetras, danios), bubble nesters (bettas), and substrate spawners (corydoras). This is the "conditioning phase" that serious breeders swear by.
What to Expect
A thick, salmon-pink paste with tiny dark specks throughout. It clings to the tip of a toothpick and slowly dissolves in the water column, releasing an irresistible protein cloud that makes every fish in the tank suddenly very interested in each other.
Does Not Fix
Will not make incompatible fish suddenly compatible. A male betta still doesn't want a roommate, no matter how well-fed he is.
Time to Effect
7-14 days of consistent feeding to see females plumping with eggs and males showing intensified colors and courtship behavior.
Safety Risks
This is intentionally calorie-dense. Do NOT use as a regular daily food — it's a conditioning tool, not a staple. Switch back to normal feeding after spawning.
Monitor water parameters closely during conditioning. More protein in = more ammonia out. Increase water changes to 25% every other day.
If a female looks bloated but isn't dropping eggs after 2 weeks of conditioning, stop the paste and consult a fish-keeping forum — she may be egg-bound.
Enrichment Ideas
Easy: Smear a tiny bit of paste on a flat rock and drop it in — fish will pick at it like a buffet station.
Medium: Freeze small blobs of paste in an ice cube tray with tank water. Drop in a cube and let it slowly thaw, releasing food over 30 minutes.
Hard: Stick a blob of paste inside a terracotta breeding cave. The pair has to enter the cave to eat, which also gets them comfortable with the spawning site.
Owner Tips
Start conditioning both the male and female at the same time. You want them peaking together, not one ready and the other still catching up.
Watch for the signs: females will get noticeably rounder in the belly, males will intensify their colors and start displaying. When you see courtship dances, it's working.
Feed small amounts 2-3 times daily rather than one big blob. Fish stomachs are tiny — if food hits the substrate uneaten, you're overdoing it.
For livebearers like guppies, conditioning usually triggers faster results (5-7 days). For egg scatterers like tetras, give it the full two weeks.
Keep the paste log wrapped tightly in the fridge. Exposure to air dries it out and kills the garlic aroma that makes fish go crazy for it.
