---
product_id: 284764749
title: "Moina Macrocopa"
brand: "green water farm"
price: "$45"
currency: NZD
in_stock: null
reviews_count: 9
url: https://www.desertcart.nz/products/284764749-moina-macrocopa
store_origin: NZ
region: New Zealand
---

# Chemical & additive-free nutrition Boosts fish motility Feeds diverse aquatic pets Moina Macrocopa

**Brand:** green water farm
**Price:** $45
**Availability:** ❌ Out of Stock

## Summary

> 🐠 Elevate your aquarium game with live, natural nutrition that gets your fish moving and thriving!

## Quick Answers

- **What is this?** Moina Macrocopa by green water farm
- **How much does it cost?** $45 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/284764749-moina-macrocopa)

## Best For

- green water farm enthusiasts

## Why This Product

- Trusted green water farm brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Easy Hatch, Fast Growth ⚡:** Hatches in as little as 24 hours with simple care—get your live culture thriving quickly and effortlessly.
- • **Say Goodbye to Pellets 🚫:** Ideal alternative for picky eaters who reject pellets, providing balanced nutrition and stimulating natural feeding instincts.
- • **Pure & Natural Nutrition 🌿:** Additive-free, chemical-free live food that mimics natural diets, enhancing survival rates especially for newborn fish.
- • **Versatile Aquatic Diet Upgrade 🦐:** Perfect for fish, shrimp, crabs, and amphibians—one food source for your entire aquatic ecosystem.
- • **Activate Your Fish’s Natural Swim 🐠:** Living Moina Macrocopa eggs encourage active hunting behavior, improving fish health and vitality.

## Overview

Moina Macrocopa eggs from GREEN WATER FARM provide a live, nutrient-rich food source that promotes exercise and health in fish and other aquatic pets. Suitable for a variety of species, this additive-free alternative to pellet food enhances survival rates, especially for newborn fish. With proper care, eggs hatch in 24-72 hours, offering an easy-to-culture, natural feeding solution that supports vibrant aquatic life.

## Description

desertcart.com: GreenWaterFarm Moina Macrocopa Eggs (Water Flea) Live Fish Food for Hatching and Culture Suitable for Feed Betta Fish : Pet Supplies

Review: Read This Before You Try! I Got a Successful Hatch in Under 24 Hours - I saw a few reviews saying these eggs didn’t hatch, but I can confirm: they absolutely do hatch if you follow the right setup. I had Moina swimming around in less than 24 hours! Please read this before you try—it will save you frustration and wasted eggs: 1. Use clean, dechlorinated tap water. Avoid pure RO or distilled water—they lack essential minerals. Tap water is perfect unless your water is from a well or has very high pH. If your water is too alkaline (above ~8.5), you may have trouble hatching. 2. Water depth: Keep water at about 3–4 inches deep. Shallow water improves light penetration and oxygen exchange. 3. Light is critical: Place the container near a window with good indirect sunlight, or use a daylight-spectrum bulb (white light) about 3–4 inches above the container. Aim for 12–16 hours of light daily. I used an old aquarium white LED light. Yellow light is not as good. 4. Temperature: Around 75–85°F works best. Room temperature worked well for me. 5. Let the eggs float: Floating is normal and helpful! Don’t try to sink them. The eggs hatch best near the surface with light and warmth. 6. No aeration needed: I didn’t use any air pump or aeration, and they still hatched fine. Aeration might help, but it’s optional. 7. Don’t overdo the eggs! I used an entire capsule because of some other reviews, and it was way too much. I wish I had not done that. Half of one capsule is plenty to start a good culture. 8. Be patient: Hatch time is usually 24–72 hours, but I saw mine start moving in under 24! 9. Feed once they hatch: Use chlorella powder or pure spirulina powder, dissolved in water. Start with a very small amount—just enough to lightly cloud the water. Don’t overfeed! I’m really happy with the results. If you follow these steps, you should get a great hatch too. Don’t let the negative reviews discourage you!
Review: UPDATE: 2 Weeks and Nothing Hatched -- Day 11 and nothing has hatched - It's day 11 and nothing has hatched, at all. I used the capsules between 4 containers. I wanted to experiment and see which hatched out best. 2 Reverse Osmosis and 2 tap water (well water with a whole home filter system and treated with tap water conditioner). 1 R/O and 1 tap were under a heat light (water temp 82°F) and the other 2 were room temperature (72-75°F). All containers are under a grow light (with my plants). NOTHING, absolutely NOTHING has hatched. When day 14 rolls around without anything hatching, I'm packing up the empty capsules and sending them back for a refund. UPDATE: It is now day 14 and NOTHING has hatched. I just noticed that this item isn't returnable. So, I'm out $15 (taxes included). I just sent an email to Green Water Farm and I'll update if they reply. UPDATE: 03/02/2023 They finally started hatching about 2 weeks ago, so it took about 4 weeks to hatch. Not everything, but enough to start a culture if they survive. The ones that hatched were in a small bowl with R/O water at room temperature around 72°F (no heat light). I took advice from an old forum thread from someone who cultures them on a large scale and have been feeding them Sweet Potato baby food. About 1 tablespoon into a bottle of water (a regular sized drinking water bottle) and shake it up. I put about a tablespoon of that mix into the culture every day. They actually swarm to it. I also dump it into my daphnia cultures and they're populations are booming. I mix new food every day, and toss the baby food after a few days. I also top off the bowl with water from one of my Daphnia cultures. Every few days, I carefully siphon out 1/4 water with a turkey baster and scrutinize it for baby Moina and replace the water with fresh R/O water. It'll take a hour to do, lol. Once the babies get a little bigger, I'll transfer them into a larger container with an air pump--no stone--just air line with a regulator turned down to a couple of bubbles per second. I also would like to thank Sprite from Green Water Farms. I reached out to tell them that nothing had hatched and he sent me a new pack of eggs. I'll keep them in the fridge until I need to hatch them.

## Features

- Help Fish Exercise - If your fish are slow or rarely swim, this living food will help them get exercise by swimming for food, thus, giving more motility and better health for the fish
- Suit for any Aquatic Pets - Not only fishes, but other amphibians and aquatic animals like shellfish, shrimp, crab, and salamander can also be fed by living crustacean
- Alternative for Pellet Food - In case your fish don’t eat pellet fish food, the living food is a good choice that can provide them a comparably sufficient level of nutrition
- Increase Fish Survival Rate - Living crustacean, as fish food, is additive-free, chemical-free, and rich in nutrients, which is similar to natural food; You can feed it to newborn fish to gain a higher survival rate

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08X4Z3VDR |
| ASIN  | B08X4Z3VDR |
| Age Range Description | N+ Days |
| Best Sellers Rank | #33,458 in Pet Supplies ( See Top 100 in Pet Supplies ) #290 in Aquarium Fish Food |
| Brand Name | GREEN WATER FARM |
| Breed Recommendation | Small Breeds |
| Customer Reviews | 3.8 3.8 out of 5 stars (728) |
| Date First Available | March 23, 2021 |
| Date First Available  | March 23, 2021 |
| Directions | Feed 2-3 eggs per fish, once a day. For best results, maintain temperature between 68-77°F (20-25°C) and keep the moist but not submerged in water. Avoid freezing temperatures. |
| Item Package Dimensions L x W x H | 3.62 x 2.68 x 0.63 inches |
| Item Weight | 0.14 Grams |
| Manufacturer | GREEN WATER FARM |
| Manufacturer  | GREEN WATER FARM |
| Number of Items | 2 |
| Size | 1 Count (Pack of 2) |
| Specific Uses for Product | Nutrition |
| Target Audience Keyword | fish |

## Product Details

- **Age Range (Description):** N+ Days
- **Brand:** GREEN WATER FARM
- **Flavor:** Seafood
- **Item Form:** Eggs
- **Specific Uses For Product:** Nutrition

## Images

![Moina Macrocopa - Image 1](https://m.media-amazon.com/images/I/71z-VLfwE9L.jpg)

## Questions & Answers

**Q: What are the dimensions of a single capsule?**
A: I usually use capsule size 1

**Q: Will this work in a pond to keep algae down ? With ftogs**
A: Yes, it can keep  green algae down

**Q: are they supposed to hatch and then the fish eats them? I have a baby betta fish and want to make sure I am doing it right since I am a new fish owner**
A: Hello

Yes, you are correct.
I would like to suggest you order fairy shrimp eggs instead of Moina because it's small than Moina. So it's suitable for baby betta than Moina

However, Fairy shrimp eggs out of stock on FBA now.
it's will available on FBA in 10 days.

If you don't want to wait you can order on my website also.
It will be shipped from the warehouse in San Carlos, CA by priority mail USPS, which takes 3-8 business days 

Regard,
Sprite

**Q: It's been 6 days and they are still just little floating white dots on top of frog tank. Any suggestions?**
A: It took a good 7 days for my colony to hatch make sure your temperature is safe for your tanks inhabitants and within range on packaging if unable to safely do this due to tank inhabitants use separate tank eggs are heat sensitive and to cold my not induce hatching

## Customer Reviews

### ⭐⭐⭐⭐⭐ Read This Before You Try! I Got a Successful Hatch in Under 24 Hours
*by A***D on April 4, 2025*

I saw a few reviews saying these eggs didn’t hatch, but I can confirm: they absolutely do hatch if you follow the right setup. I had Moina swimming around in less than 24 hours! Please read this before you try—it will save you frustration and wasted eggs: 1. Use clean, dechlorinated tap water. Avoid pure RO or distilled water—they lack essential minerals. Tap water is perfect unless your water is from a well or has very high pH. If your water is too alkaline (above ~8.5), you may have trouble hatching. 2. Water depth: Keep water at about 3–4 inches deep. Shallow water improves light penetration and oxygen exchange. 3. Light is critical: Place the container near a window with good indirect sunlight, or use a daylight-spectrum bulb (white light) about 3–4 inches above the container. Aim for 12–16 hours of light daily. I used an old aquarium white LED light. Yellow light is not as good. 4. Temperature: Around 75–85°F works best. Room temperature worked well for me. 5. Let the eggs float: Floating is normal and helpful! Don’t try to sink them. The eggs hatch best near the surface with light and warmth. 6. No aeration needed: I didn’t use any air pump or aeration, and they still hatched fine. Aeration might help, but it’s optional. 7. Don’t overdo the eggs! I used an entire capsule because of some other reviews, and it was way too much. I wish I had not done that. Half of one capsule is plenty to start a good culture. 8. Be patient: Hatch time is usually 24–72 hours, but I saw mine start moving in under 24! 9. Feed once they hatch: Use chlorella powder or pure spirulina powder, dissolved in water. Start with a very small amount—just enough to lightly cloud the water. Don’t overfeed! I’m really happy with the results. If you follow these steps, you should get a great hatch too. Don’t let the negative reviews discourage you!

### ⭐ UPDATE: 2 Weeks and Nothing Hatched -- Day 11 and nothing has hatched
*by H***. on February 2, 2023*

It's day 11 and nothing has hatched, at all. I used the capsules between 4 containers. I wanted to experiment and see which hatched out best. 2 Reverse Osmosis and 2 tap water (well water with a whole home filter system and treated with tap water conditioner). 1 R/O and 1 tap were under a heat light (water temp 82°F) and the other 2 were room temperature (72-75°F). All containers are under a grow light (with my plants). NOTHING, absolutely NOTHING has hatched. When day 14 rolls around without anything hatching, I'm packing up the empty capsules and sending them back for a refund. UPDATE: It is now day 14 and NOTHING has hatched. I just noticed that this item isn't returnable. So, I'm out $15 (taxes included). I just sent an email to Green Water Farm and I'll update if they reply. UPDATE: 03/02/2023 They finally started hatching about 2 weeks ago, so it took about 4 weeks to hatch. Not everything, but enough to start a culture if they survive. The ones that hatched were in a small bowl with R/O water at room temperature around 72°F (no heat light). I took advice from an old forum thread from someone who cultures them on a large scale and have been feeding them Sweet Potato baby food. About 1 tablespoon into a bottle of water (a regular sized drinking water bottle) and shake it up. I put about a tablespoon of that mix into the culture every day. They actually swarm to it. I also dump it into my daphnia cultures and they're populations are booming. I mix new food every day, and toss the baby food after a few days. I also top off the bowl with water from one of my Daphnia cultures. Every few days, I carefully siphon out 1/4 water with a turkey baster and scrutinize it for baby Moina and replace the water with fresh R/O water. It'll take a hour to do, lol. Once the babies get a little bigger, I'll transfer them into a larger container with an air pump--no stone--just air line with a regulator turned down to a couple of bubbles per second. I also would like to thank Sprite from Green Water Farms. I reached out to tell them that nothing had hatched and he sent me a new pack of eggs. I'll keep them in the fridge until I need to hatch them.

### ⭐⭐⭐⭐⭐ Hatched in 24 hours!
*by J***L on December 14, 2025*

These worked great for me. Put them in dechlorinated water with a heater set to 81 degrees and they hatched in 24 hours.

## Frequently Bought Together

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---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-24*