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For the Refugium

There are 14 products.

Macroalgae for the Marine Refugium / Sump

The following marine algae species are a great choice to keep them in a Sump / Refugium, with an extra refugium light for them to grow. They are the first choice when it comes to reducing the Nitrate and Phosphate levels in the reef tank, fish only aquarium or seahorse tank, as they grow very fast.

Al...

Macroalgae for the Marine Refugium / Sump

The following marine algae species are a great choice to keep them in a Sump / Refugium, with an extra refugium light for them to grow. They are the first choice when it comes to reducing the Nitrate and Phosphate levels in the reef tank, fish only aquarium or seahorse tank, as they grow very fast.

All our algae we sell are from our special Algae Tanks setups which are kept without any fishes for a disease free and premium quality. This said, the might come with hitchhikers not limited to Copepods and Rotifers, as those beneficial critters love the protected environment of our planted marine tanks.

Beside of the Chaetomorpha / Chaeto algae species, these algae are mainly invasive saltwater algae species, which would need in an Aquarium Tank Display much more work to keep them restrained. Thus they are perfect to be placed in the restrained area of a marine Sump / Refugium area.

If you have a typical Refugium / Sump setup with 3 chambers we would recommend to use the middle chamber for the macro algae, so the parts with the return pump / protein skimmer will stay algae free. As well we recommend using a coarse filter before the last chamber. so no algae can enter your tank display.

Beside of the great advantages of reducing the Nitrate and Phosphate Level in the tank, they will as well provide a perfect environment for Copepods and Rotifers too and help to increase the population of those beneficial cultures.

Surely it is possible to add almost all of our marine macro algae we offer to the Sump / Refugium, but we would recommend much more green macro algae species, as they will grow faster, which means they will lower more effective the Phosphate / Nitrate levels. 

Red Macro Algae species could be placed in the sump / refugium too,  but they grow mainly much slower than the green algae species, and they are in our opinion almost to beautiful to hide them in a sump / refugium. But when you have a open refugium / sump tank as a planted refugium show aquarium, they will surely look great in it.

Our fist choice for marine plants in the Refugium / Sump area for fast-growing algae are the following macro algae species:

Caulerpa Taxifolia

Caulerpa Racemosa Peltata

Caulerpa Brachypus

Caulerpa Serrulata

Caulerpa Racemosa Cylindrica

Caulerpa Racemosa Grape Caulerpa

Marine macroalgae will provide you still all the other great benefits, which we explain more at the Facts part.

We hope you enjoy our beautiful marine macroalgae collection and if you have any questions don't hesitate to contact us.

Receive updates about latest arrives and offers with our Newsletter plus a 5% Discount Voucher for new subscribers.

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Showing 1 - 14 of 14 items
  • Caulerpa Prolifera

    This Caulerpa Prolifera marine macro algae species offers long blades which can grow up to 20-30 cm long.The fronds are attached to a thick rhizome which will attach itself to rock, gravel etc. It is a medium fast growing species and will give a beautiful natural look to the marine tank. Caulerpa Prolifera can adapt better to various water conditions...

    £ 6.95
    0 1 2 3 4 6 Review(s) 
  • Caulerpa Brachypus

    This Caulerpa species is a smaller but faster growing macro algae than Caulerpa Prolifera, with blades between 2-10cm long. The fronds are attached to a thick rhizome which will attach itself to rock, gravel etc. It is a great algae for nutrients export and for the sump.

    £ 5.95
    0 1 2 3 4 5 Review(s) 
  • Caulerpa Racemosa Cylindracea

    The Caulerpa Racemosa Cylindracea macro algae species is another very fast growing and nice looking green macro algae, which will give your tank a more natural look and for Seahorses additional holdfast. As well this macro algae is a great choice to reduce the Nitrate and Phosphate level in the tank, as it can be kept in the sump and in the tank display.

    £ 5.95
    0 1 2 3 4 7 Review(s) 
  • Caulerpa Racemosa Grape Caulerpa

    The Caulerpa Racemosa Grape Caulerpa is a very popular and beautiful looking macro algae, which often get seen as the origin of Caulerpa racemosa species. It is fast growing and forms ball shaped appendages, therefore it is commonly called Grape Caulerpa.  It is popular for Human Consumption too, but we sell this algae just for the marine tank.

    £ 6.95
    0 1 2 3 4 4 Review(s) 
  • Caulerpa Racemosa Peltata

    The marine macro algae species Caulerpa Racemosa Peltata features small round or flat topped uprights, which look like little umbrellas.  It is a fast growing macro algae addition which prefers a more moderate light.

    £ 6.95
    0 1 2 3 4 3 Review(s) 
  • Caulerpa Serrulata

    The Caulerpa Serrulata macro algae species has small branched uprights with a series of flat serrated blades. It of often used for nutrient export in the refugium, but will give as well additional holdfast for seahorses.

    £ 4.95
    0 1 2 3 4 2 Review(s) 
  • Caulerpa Taxifolia

    Caulerpa Taxifolia belongs to the  greenmacro algae species and has long fronds with segmented appendages. It is tolerant to a wide range of water temperature but needs more light than for example Caulerpa Prolifera. A very nice looking algae which gives the marine tank a more natural look. It is as well a recommended algae for the refugium to reduce...

    £ 5.95
    0 1 2 3 4 8 Review(s) 
  • Chaetomorpha Chaeto Linum

    Chaetomorpha or just Chaeto is a perfect nutrients export marine macro algae species. Often placed in the the sump it is non-invasive and fast growing algae, which is very easy to care for. This Chaeto species is not palatable, but the main purpose it does very well, reducing the Nitrate and Phosphate levels in the aquarium water. We have a palatable...

    £ 9.95
    0 1 2 3 4 5 Review(s) 
  • Caulerpa Sertulariodes

    Caulerpa Sertulariodes is a very beautiful macroalgae which develops upright feather or fern looking blades, which canreach a high up to 20cm. It can be sometimes mistaken as Caulerpa Taxifolia but it looks more filigrain. It grows well in the substrate but prefers more hard surfaces to attach to.

    £ 6.95
    0 1 2 3 4 0 Review(s) 
  • Fast Growing Nitrate & Phosphate Remover Algae-Pack

    This macro algae pack is a great choice if you are looking for fast growing marine macro algae to reduce the Nitrate and Phosphate levels in your marine aquarium.  They are smaller algae frags than the single sold algae species but a great choice if you don't want to spend a lot of money. You will get 4 of the shown marine macro algae as starter algae...

    £ 12.95
    0 1 2 3 4 6 Review(s) 
  • Duo Caulerpa Starter Set

    With this algae set you will receive 2 fast growing and great looking marine macro algae species together.  This macro algae pack is a great choice for you when you just started to enrich your marine tank with macro algae and you don't want to spend a lot of money.

    £ 6.95
    0 1 2 3 4 4 Review(s) 
  • Gift Card £10
    GC-10

    With our Gift Voucher it is now much easier to get the perfect gift for your friends or family.The voucher is valid  on our full range of marine macro algae, so your recipients can get exactly choose what they want. The Gift Voucher can be used several times (as long as the balance is positive) and includes our 100% Satisfaction Guarantee.Valid until:...

    £ 10.00
    0 1 2 3 4 0 Review(s) 
  • Gift Card £25
    GC-25

    With our Gift Voucher it is now much easier to get the perfect gift for your friends or family.The voucher is valid  on our full range of marine macro algae, so your recipients can get exactly choose what they want. The Gift Voucher can be used several times (as long as the balance is positive) and includes our 100% Satisfaction Guarantee.Valid until:...

    £ 25.00
    0 1 2 3 4 0 Review(s) 
  • The Seahorse Trust - Donation

    Thanks to some of our kind customers we came in contact with The Seahorse Trust.  We believe that a little help and a little consideration can make big changes and we got the impression that the UK registered charity The Seahorse Trust is very passionate about the work they are doing.

    £ 1.00
    0 1 2 3 4 0 Review(s) 

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?

You can register your interest on the algae page you are looking for to get an email once it is back in stock or stay informed via our Newsletter, and 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 species.

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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.

Satisfaction Guarantee

We want you to be happy with your purchase.

Therefore we offer you a hassle free 100% Satisfaction Guarantee.
If you are not happy with your purchase we will refund your money back. Read more about here:

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