Introduction to Marine Macroalgae

Macroalgae, or sometimes so called seaweed, seems to have become within the last years more and more popular amongst marine aquarium hobbyists.

 

Previously macroalgae was often used specifically to provide a natural way to export the nutrients in the aquarium water, which means that the algae will grow by using compounds like nitrate, phosphate, ammonium and some heavy metals in the tank water.

 

During this photosynthesis process it uses carbon dioxide too and turns this into additional oxygen for the aquarium inhabitants.

 

As well it will help to raise the pH level in the tank and increase the tank carbonate buffer capacity, which means are more stable alkalinity level.

 

In addition it is often used to provide additional hiding spaces for copepods and rotifers.

 

Nowadays thanks to the variety of available macroalgae species, macroalgae can still fulfil these very important functions but they add a very important benefit too . . .

 

. . . a beautiful and more natural looking tank.

 

Very important is the right choice of macroalgae species.

As there are invasive and non-invasive algae species available, it is recommended to get all

the information you need about the macroalgae in mind before adding it to your marine tank.

 

No one wants to have the nightmare to realise that they have chosen the wrong macroalgae for their tank after it overgrows the whole tank or the corals, right?!

 

Our aim is to provide you all the information you need to choose the right macroalgae for your tank and to get all the information you need to keep them successfully in your own marine aquarium.

 

You might wonder why we actually recommend to have macro algae in the tank, while so many people seem to try to get rid of algae in their tank using chemical or mechanical nitrate and phosphate remover, to reach a phosphate/nitrate level of 0.

 

Well, the truth lies in the difference.

 

Microalgae on the one side, like phytoplankton, provide an important food base in the open sea.

They are mostly one-cell algae species.

Especially microalgae species like diatoms (Bacillariophyta), green hair algae (Chlorophyta) and the dinoflagellates (Dinophyta) are the most problematic microalgae you will come across in the marine tank hobby, as they can become a serious problem in the tank.

 

So-called Macroalgae on the other side, are easy explained algae which you can see with your naked eye and contain mostly many cells.

 

The various macroalgae species can enrich the whole tank by:

  • Ability to suppress unwanted microalgae, like green hair algae etc.

  • Reducing the nitrate and phosphate level in the marine aquarium

  • Providing shelter for small fishes, copepods and rotifers

  • Natural food source for critters and fishes to keep them happy and healthy especially Tang fishes need a good portion of daily algae to stay fit and healthy

  • More natural look of the marine aquarium to enjoy

 

BTW: Algae is already the plural for these marine plants, and in singular it is called Alga :)


Frequently Asked Questions

Do you have a shop to visit?

As an aquatic algae farm, we don't have a public shop to visit unfortunately but we are happy to post all our macro algae species within the UK for free to you.

And we are sure you will like your new macro algae addition once received.

How do I know when a algae is back in stock?

The best way to stay informed is to subscribe to our Newsletter or to follow us on Facebook, as we will first inform there when our algae are ready to sell again, or when we received new macro algae.

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What means "Regrowing"?

When a macro algae species sells well we have sometimes to take it out of the sale as it will need time to regrow again.

The time for this will vary, as some macro algae species will grow very slow, whilst other - especially various  Caulerpa marine macro algae species grow quite fast.

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