Phytoplankton is a type of microscopic algae that is abundant in nutrients and is essential for the growth and wellbeing of corals. It is a vital food source for many marine organisms, including corals.
Phytoplankton contains a diverse range of vitamins, minerals, amino acids, and other essential nutrients that corals require to thrive.
Studies have shown that feeding Acropora corals with phytoplankton can lead to increased growth rates and improved health. In fact, research conducted on seven different feeding strategies for Acropora corals found that all species grew more with a phytoplankton diet than with other diets, including formulated diets.
One of the main advantages of feeding phytoplankton to Acropora corals is that it is a natural food source. Phytoplankton is readily available in the ocean, making it an ideal food for corals in their natural habitat. This means that phytoplankton is a food source that corals are adapted to and can easily digest.
Another benefit of feeding phytoplankton to corals is that it is effortless to prepare and administer. Phytoplankton can be purchased in liquid or powder form and added directly to the aquarium water. It is also possible to cultivate your own phytoplankton culture, which can be a cost-effective way to provide a constant supply of phytoplankton to your corals.
Here are some guidelines on how and when to dose phytoplankton:
1. Determine the appropriate dosage:
The appropriate dosage of phytoplankton will depend on the size of your aquarium, the number of corals and filter feeders, and the existing nutrient levels in your tank. It is important not to overfeed, as this can lead to an increase in nutrient levels and negatively impact the water quality. Start with a small dosage and gradually increase until you find the appropriate amount for your tank.
2. Choose the right type of phytoplankton:
There are different types of phytoplankton available on the market, and it is important to choose the one that is appropriate for your tank. Some species of phytoplankton may be more suitable for certain types of corals or filter feeders.
3. Mix the phytoplankton:
Mix the appropriate amount of phytoplankton with aquarium water in a separate container. Make sure to mix the phytoplankton well to ensure an even distribution.
4. Dose the phytoplankton:
Add the mixture of phytoplankton and water to the aquarium. It is best to dose the phytoplankton in the evening, as this is when the corals and filter feeders are most active.
5. Observe the tank:
After dosing the phytoplankton, observe the tank to ensure that the water quality is not negatively impacted. If you notice any changes in the water quality, such as an increase in nutrient levels or a decrease in water clarity, adjust the dosage accordingly.
It is important to note that dosing phytoplankton should be done in moderation and as part of a balanced feeding regimen. It is also important to regularly test the water quality to ensure that the nutrient levels are within appropriate ranges.
In Italy having quality Phytoplankton (reef international) buy directly from him. But not being closer, I decided to start preparing it at home. It was a good experience, especially for my acquaintance. In recent years I have stopped but I keep the steps I followed in my notes and I would like to share them with you.
Step 1:
Prepare the algae culture:
Start by purchasing an algae culture from a specialized store. Follow the instructions on the package for preparing the algae culture. In general, you will need to add water and necessary nutrients to the algae culture and keep it in a well-lit place at an appropriate temperature.
Tools needed: Algae culture, water, nutrients, container, light source.
Time required: 1-2 days to prepare the culture.
Step 2:
Prepare the nutrient solution:
To grow the algae, you will need a nutrient solution that contains all the necessary nutrients. You can either purchase a pre-packaged nutrient solution or prepare one yourself. The nutrient solution should contain substances such as nitrates, phosphates, iron, and other micronutrients.
Tools needed: Nutrient solution, water.
Time required: 1-2 hours to prepare the nutrient solution.
Step 3:
Add the nutrient solution to the algae culture:
Add the nutrient solution to the algae culture and mix well.
Tools needed: Nutrient solution, container, stirrer.
Time required: 1 hour to add the nutrient solution and mix well.
Step 4:
Grow the algae:
After adding the nutrient solution, grow the algae in a well-lit place, such as a window exposed to the sun or under aquarium lighting. Make sure to maintain the necessary temperature and amount of light to grow the algae.
Tools needed: Light source, container.
Time required: 5-10 days to grow the algae.
Step 5:
Harvest the phytoplankton:
After a few days, the phytoplankton will be ready to be harvested. Use a strainer to filter the algae from the nutrient solution and rinse with fresh water. The phytoplankton can then be fed to the corals.
Tools needed: Strainer, container, fresh water.
Time required: 1 hour to harvest and rinse the phytoplankton.
Note that creating phytoplankton requires time and constant attention to ensure that the algae grow healthily and that the nutrient solution is balanced.
Phytoplankton is an excellent food source for corals. It is a natural and nutritious food that can lead to increased growth rates and improved health. If you want to ensure the longevity and beauty of your corals, consider adding phytoplankton to their diet.
I have found inspiration and many answers for my tanks by reading the following books that cover the topic of feeding corals, including Acropora corals, and the role of phytoplankton in their diet:
– The Coral Reef Aquarium” by Tony Vargas :
This book covers all aspects of coral reef aquarium keeping, including feeding and nutrition. It includes a section on feeding corals and the various food options, including phytoplankton.
– A ReefBum’s Guide to Keeping an SPS Reef Tank: A Blueprint for Success” by Jeff Kurtz :
This book is a practical guide to keeping an SPS (small polyp stony) reef tank, which often includes Acropora corals. It includes a section on feeding SPS corals and the importance of phytoplankton in their diet.
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