- Sku: PE-CAL-00216
- Vendor: Piscine Energetics
Piscine Energetics PE Frozen Calanus
Piscine Energetics PE Frozen Calanus is whole Calanus finmarchicus, an Arctic copepod sustainably harvested at the stage when it is naturally packed with essential fatty acids, then flash frozen so that nutrition stays locked inside each animal. The bright orange color comes from astaxanthin at 120 ppm, which shows up in your fish and corals as deeper reds and oranges. At roughly the size of a large brine shrimp it suits small-mouthed fish such as anthias, dragonets, wrasses, clownfish and cardinals, LPS corals like Goniopora, Duncans and blastos, and freshwater favorites like bettas, discus and angelfish. Choose the 4 oz cube pack for easy portioning or the 16 oz flat pack for value, and browse the rest of our fish foods.
Why PE Calanus
- Bio-encapsulated nutrition: harvested while actively feeding on phytoplankton, so the omega-3s are inside the animal, not sprayed on afterward.
- Astaxanthin at 120 ppm: a natural color enhancer for reef fish and corals.
- Fresh and saltwater: the same food feeds a reef tank and a discus tank.
- Coral friendly size: small enough for LPS, anemones and many filter feeders to capture whole.
- Same PE process as PE Mysis: sustainably harvested, flash frozen, no additives.
How to Feed
- Pop out one cube, or break a portion off the flat pack, and return the rest to the freezer immediately.
- Thaw it in a cup of tank water, or drop it straight in; PE says either method works.
- Pour into a high-flow area, or target feed corals and shy fish with a baster.
- Feed only what the tank clears in a few minutes and remove any leftovers.
Keep the pack frozen and never refreeze a thawed portion.
Choose Your Size
| 4 oz cube pack | Pre-portioned cubes in a blister pack, the easy choice for nano and mixed reefs |
| 16 oz flat pack | Break-off flat pack, the value size for larger systems and heavy coral feeders |
Specifications
| Brand | Piscine Energetics |
| Product | PE Frozen Calanus |
| Sizes | 4 oz cube (blister) pack, 16 oz flat pack |
| Ingredients | Calanus (Calanus finmarchicus) |
| Guaranteed analysis | Crude protein min 12%, crude fat min 6%, crude fiber max 1%, moisture max 73%, phosphorus min 0.2%, astaxanthin 120 ppm |
| Best for | Small-mouthed marine and freshwater fish, LPS corals, anemones and filter feeders |
| Storage | Keep frozen; do not refreeze thawed portions |
Recommended Pairings
- Piscine Energetics PE Mysis, the staple to rotate it with
- Rod's Food Frozen Pacific Plankton, a larger krill treat for the same tank
- Piscine Energetics 1 mm Saltwater Pellets, the dry staple from the same company
- SFBB Fish Food Icebox, an insulated bag to get frozen food home cold
- More saltwater supplies
FAQ
How is Calanus different from mysis? Calanus is a much smaller copepod with far more astaxanthin and fat per bite. Use it for color, for small mouths and for corals; use mysis as the bulk staple.
Can I feed it to corals? Yes. Target feed LPS, anemones and filter feeders with a thawed portion in a baster, with pumps low for a few minutes.
Does it work in freshwater? Yes. PE recommends it for small-mouthed freshwater omnivores and carnivores such as bettas, discus and angelfish.
Why pickup only? It has to stay frozen. We keep it in the store freezer and hand it to you at pickup instead of risking a thawed pack in a shipping box.
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Piscine Energetics PE Frozen Calanus


