Aquaculture Education

Standard vs Decapsulated Artemia Cysts: Choosing the Right Form

Compare shell-on Standard Artemia Cysts and shell-free Decapsulated Artemia to find the right fit for your hatching setup, feeding protocol, and customer segment.

61.0% پروتئین خام24.5% چربی خامآلودگی پوسته: 0% (خالص)
Science-Backed Nutrition

Standard vs Decapsulated Artemia: What's the Difference?

Artemia cysts naturally have a thick outer shell known as the chorion. Standard cysts are typically hatched before feeding, since very young fry and shrimp larvae have limited ability to digest the unhatched shell — many other species and older larvae tolerate it without issue.

Decapsulation is a chemical hydration and oxidation process that removes the outer chorion while leaving the living embryo intact in a thin membrane. This gives a higher net caloric density per gram and lets the cysts be fed directly without a separate hatching step — while Standard Cysts remain a cost-effective, widely used option for operations with established hatching infrastructure.

VARS Decapsulated Artemia Product Packaging
REVIVE™ Decapsulated Artemia

500g & 1000g Vacuum Sealed Cans

Shell-free dried cysts with 100% digestible embryonic membrane.

شاخص‌های کلیدی تغذیه‌ای

پروتئین خام
61.0%
چربی خام
24.5%
ارزش انرژی
502 kcal / 100g
آلودگی پوسته
0% (خالص)

Shell On, Shell Off, On Its Way

The difference decapsulation makes is visible to the naked eye: brown shell-on cysts go in, orange shell-free embryos come out — ready to feed with zero hatching.

Brown shell-on dry Artemia cysts on a spoon before decapsulation
Before: shell-on cysts, chorion intact
Close-up of orange shell-free decapsulated Artemia cysts
After: shell-free decapsulated cysts, up close
Revive Artemia tin unboxed from a customer shipment
Revive tins arriving with a customer shipment
Shell Removal Mechanism

Standard Cyst vs Decapsulated Embryo

Standard Artemia CystFor Hatching & Culture
CHORION SHELL

Retains its natural chorion shell. Hatch before feeding to very young fry, or feed directly to species that tolerate shell content.

VARS Decapsulated EmbryoReady to Feed Directly
100% DIGESTIBLE

Chorion fully removed. Higher net energy density (502 kcal/100g) with no hatching step — feed directly from the can.

Artemia Life Cycle

From Dormant Cyst to Adult, and Back Again

Dormant Cyst

Dehydrated, cryptobiotic — stable for years in dry storage

Hydration & Hatching

Chorion absorbs water and splits within 18–24 hours

Nauplius (Instar I)

Single eye, three appendage pairs — first live-feed stage

Adult Brine Shrimp

Reaches maturity in 2–3 weeks; produces new cysts or live young

Cryptobiosis → Hatch → Nauplius → Adult Continuous Reproductive Cycle

Technical Comparison: Standard Cysts vs Decapsulated Artemia

Feature
Standard Artemia Cysts
VARS Decapsulated Artemia
Outer Shell (Chorion)
Present — hatch before feeding to very young fry
Removed — ready to feed directly
Energy Content
Standard caloric density; some energy used during hatching
Higher net caloric density (502 kcal/100g) — no hatching energy loss
Incubation Cones & Equipment
Requires 24-hr aeration, light, salinity setup
No hatching setup required — feed directly from the can
Shell Handling
Unhatched shells should be separated from feed for very sensitive fry
No shell present — no separation step needed
Crude Protein
45–52%
61.0%
Crude Lipids (Fat)
10–14%
24.5%

Which Form Fits Your Operation?

Matching Standard and Decapsulated Artemia to commercial, public, retail, and home aquarist use cases.

Commercial Hatcheries & Marine Farms

Operations with established hatching infrastructure often use Standard Cysts as a cost-effective live feed. For very young or sensitive post-larvae (sea bass, sea bream, grouper, shrimp), many hatcheries switch to Decapsulated Artemia to skip the hatching step and reduce shell-handling labor.

Public Aquariums & Marine Exhibits

Decapsulated Artemia gives a ready-to-feed, high-energy option for delicate filter feeders, seahorses, and pipefish, while Standard Cysts suit exhibits where on-site hatching is already part of the routine.

Aquarium Shops & Wholesale Retailers

Both formats are available in shelf-stable retail cans (500g / 1kg) — Standard Cysts for customers who hatch their own live feed, and Decapsulated Artemia for customers who want a direct-feed option.

Reef & Aquarium Keepers

Decapsulated Artemia is convenient for direct feeding into reef tanks and fry-rearing setups without a hatching station, while Standard Cysts suit anyone who prefers to hatch their own nauplii.

پرسش و پاسخ

پرسش‌های متداول

The questions buyers ask us most about this page. The full set, filterable by subject, lives on our FAQ hub.

No. The shell is removed and the remaining embryonic membrane is fully digestible, so they are rehydrated and fed directly — 0 % shell contamination and no 24-hour hatching cycle. That makes them a practical fallback when hatching capacity is the bottleneck, and a clean option for systems where shell debris is a problem.

Standard shell-on cysts if you want live swimming nauplii and have the hatching setup — aeration, light and salinity control for a full day. Decapsulated cysts if you want to feed directly: they are shell-free and analyse at 61.0 % protein, 24.5 % lipid and 502 kcal/100 g against 45–52 % protein and 10–14 % lipid for standard cysts, because no energy has been spent on hatching.Compare both formats

Cool, dry and sealed. Vacuum-packed cans hold their hatch quality without refrigeration, which is exactly why the format is used for long-haul supply. Once a can is opened, keep it airtight and dry — moisture and repeated air exposure, not time on the shelf, are what degrade hatchability.

Hydrate the cysts in clean freshwater for about 30 minutes at 20–25 °C, then incubate in a conical vessel at 25–35 ppt salinity and 28–30 °C, with vigorous aeration and roughly 2,000 lux of continuous light, at a maximum density of 2 g of cysts per litre. Nauplii are ready to harvest after 20–24 hours. Below 25 °C the hatch slows markedly.Full incubation protocol

Yes. Both standard and decapsulated Artemia cysts are available in shelf-stable 500 g and 1 kg vacuum-sealed cans intended for retail sale, so a shop can stock the format its customers hatch themselves and the ready-to-feed format side by side.For aquariums & retailers