Frozen Mysis Shrimp Bio-Pure — 3.5 oz Cube and 16 oz Flat Pack - Hikari

Frozen mysis shrimp is the backbone of most reef and freshwater feeding routines. Hikari describes its Bio-Pure mysis as a brackish water species offering an excellent protein source: the natural chitosan in its less developed shell supports immune system health, while that thin shell stays easy for smaller fish to chew through.

In this clip filmed at the store, we show how to turn an ordinary frozen food into something that feeds the fish and the rest of the tank.

What Hikari packs into every cube

• Fatty acids naturally present in the animal
• Gut-loading with bio-encapsulated multi-vitamins before freezing
• Three-step sterilization: free of harmful parasites, unwanted bacteria and foul odour
• Rapid freezing that holds the original colour, taste and texture
• Whole animals rather than broken pieces
• No-touch cubes so you can portion without getting your hands wet

Two pack sizes

3.5 oz (100 g) cube pack, 32 cubes — Hikari item #30920

The size that suits most home aquariums. One cube thaws in minutes in a little tank water and portions out with no waste.

16 oz (454 g) flat pack — Hikari item #31040

Built for larger systems, fish rooms, or anyone feeding daily. Break off what you need and the rest goes back in the freezer.

Guaranteed analysis published by Hikari

How to feed it

Hikari is specific: use as a treat, and feed no more than your fish will consume within 30 to 45 seconds, no more than twice daily. Remove anything left over once the feeding period ends.

Manufacturer warning: handling a frozen food derived from a live animal can cause the same allergic reaction as handling the live animal itself. Wash your hands immediately after use and avoid contact with your nose and mouth before washing.

Our advice

Do fish really need frozen food? Not always — good quality pellets can be enough. But I do recommend it: fish love it, it creates real interaction at feeding time, and the small bits that break loose — the eyes, the fragments — go on to feed the benthic fauna, the corals and the whole system. It is more complete. I also recommend varying the menu: it is not good for them to always eat the same thing.

"Mysis is expensive, I'll just use grocery store shrimp" — we hear that often. But we humans only eat the tail, only the flesh. That is incomplete. A frozen mysis is the whole shrimp: the eyes, the head, the liver, the heart. Far more nutritious than what we eat ourselves. And it is frozen fast, so the nutrients are locked in.

Vita-Chem is a product we love and use ourselves at the store. It goes into any food — frozen first — and it can be used at any time. Vitamins are made for exactly this: improving fish colour and vitality. I like it especially for new fish: there is an appetite stimulant in it that makes food irresistible. A fish that won't eat, you put some in its food and it eats. It is a very good product for giving vigour, keeping diseases away, keeping problems away — it has all the good things in it. That is why we use it at the store.

— Stéphane, Aquarium ReefSolution

Why buy from ReefSolution

Authorized Hikari dealer, a dedicated reef store in Laval with in-store pickup and delivery across Canada. The tools we use ourselves at feeding time:

• Boyd Vita-Chem Marine — the vitamin supplement to mix into frozen food before you serve it.
• Seachem Garlic Guard — garlic-based appetite stimulant for picky fish.
• Easy Feed Pipette 385 mm — place food exactly where you want it without putting your hand in the tank.
• Two Little Fishies Julian's Thing — the syringe-style feeder that works as well on a coral as on a shy fish.

Frequently asked questions

Should you rinse frozen mysis before feeding?

Hikari asks for no rinsing at all with its Bio-Pure mysis. One cube thaws in minutes in a little tank water and goes in as is.

Is frozen mysis suitable for seahorses?

Yes. Hikari names seahorses explicitly among the fish its Bio-Pure mysis is intended for, alongside cichlids, angels, triggerfish and wrasses.

Shipping note: frozen food ships express in an insulated cooler with ice packs. Partial or complete thawing during transit is normal — especially in summer — and does not affect the product's quality for your fish. Dry ice would cost a fortune with zero quality benefit; we don't offer it. Be there to receive your package and place it directly in your freezer upon delivery.