Chaetomorpha linum Chaeto Marine Macroalgae
    Chaetomorpha linum Chaeto Marine Macroalgae
    Chaetomorpha linum Chaeto Marine Macroalgae
    Chaetomorpha linum Chaeto Marine Macroalgae
    Chaetomorpha linum Chaeto Marine Macroalgae
    Chaetomorpha linum Chaeto Marine Macroalgae
    Chaetomorpha linum Chaeto Marine Macroalgae
    Chaetomorpha linum Chaeto Marine Macroalgae

    Chaetomorpha Chaeto Fast Growing


    Our medium thick Chaeto / Chaetomorpha algae species offers the fastest growth rate and is a perfect choice to lower nitrate and phosphate levels in the marine aquarium. As it grows much faster than the thick Chaetomorpha which we offer too it will need a minimum nitrate level of 2-3 ppm, otherwise it may starve and struggle. 

    We have a palatable Chaeto species as well HERE and the slower growing Chaeto species HERE


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    Chaetomorpha Chaeto Linum Marine Macroalgae

    Premium Marine Macro algae for the Planted Reef Display Tank & Refugium for sale on Live Algae UK.
    Your 1st choice for clean Marine Macroalgae from Fish & Copper free tanks since 2014.

    The  medium thick Chaetomorpha / Chaeto marine macroalgae loves the light, as more as you provide as faster it will grow.


    This Chaetomorpha algae species is rarely eaten, if so mainly by larger herbivore marine fish species.

    Chaeto / Chaetomorpha algae species are not invasive and they won't attach themselves. A great choice for the refugium for nutrients export.

    Whitish parts of the Chaeto should be removed as they are decomposing. But Chaeto is a very stable macroalgae, so this should hardly happen.

    Like for most marine macroalgae a higher level of Nitrate and Phosphate, in addition to the supplement of Iron, Magnesium and Trace elements will improve the growth of this live algae.

    If the macroalgae is not growing as expected a special formulated fertiliser for the marine aquarium can help to improve the growth of the macroalgae. Please find a selection of supplements for the marine aquarium HERE   

    Chaetomorpha Linum Variations
    Chaeto Linum - or often called Spaghetti Algae - are a loosely entangled group of macro algae species which are non-invasive with unbranched filaments usually between 3 and 40 cm  long.  The colour of it is varying between dark green to bright or yellowish green. It occurs in various diameter sizes ranging between 0.2 - 2.5mm. We have a few different Chaetomorpha / Chaeto species available but classify this non-palatable macro algae Chaeto mainly in a very thick Chaeto group, which grows medium fast but is therefore more tolerant to low nutrients in the water and where nutrients remover like Rowaphos, Carbon, Nitrate remover or other water polisher are used. and a medium thick Chaeto group which grows much faster and is therefore our recommended choice for nutrients removal. As it grows very fast it will need sufficient Nutrients to stay stable and might suffer or die off when necessary nutrients ( especially Nitrate and Phosphate ) are very low or where nutrients remover like Rowaphos, Carbon, Nitrate remover or other water polisher are used. If you prefer one of them please let us know. We recommend for Chaeto as well to maintain good Magnesium levels and dosing of Iodine and Iron.

    Please note
    Our macroalgae are from fish free macro algae tanks, although we use sometimes pictures for demonstration purposes only which will include fishes, seahorses and or corals. 
    We do our best to quarantine, treat and remove any unwanted hitchhikers, parasites etc from our macro algae but we can not guarantee that the algae are completely free of anything unwanted, not limited to Copepods, Rotifers etc. This is simply because that sometimes eggs, spores, etc can remain viable but not visible and hitchhikers can still stay hidden, especially in dense algae structures, despite our strict quarantine efforts. 

    All macro algae will be thoroughly dipped in a professional solution to deactivate hitchhikers as good as possible before posting. If you don't want this, please send us a message together with your order.

    We highly recommend nonetheless that you properly quarantine anything new before adding it to your marine tank.

    We aim to offer you the healthiest and best quality macro algae on the market, therefore, all of our macro algae comes with a 100% Satisfaction Guarantee.
    The images on this page are for example only, actual product appearance may vary. 
    Common Name
    Chaeto / Cheato or Spaghetti Algae
    Rock (attach)
    Growth Rate:
    Food Value:
    Not Palatable
    Nutrient Uptake:
    Very good
    Flow Rate:
    Moderate to High
    Green Macroalgae
    Scientific Name
    Chaetomorpha Linum


    We want you to be fully happy with your new macroalgae addition. Therefore we offer you a hassle free Satisfaction Guarantee.  

    If you are not 100%  happy with the macroalgae you have received on arrival we will refund you the full money back.    *1
    We even will cover the return costs. The refund will be offered after we arrived and checked the returned marine algae.

    *1 = Valid for UK Orders only, please see our Terms for EU orders HERE 


    We offer for sale macroalgae from our mature macroalgae mother colonies in a premium quality & 100% healthy within the UK and EU.
    All live algae species are sustainably grown in the UK.

    All macroalgae will be well protected when posted to you to ensure that it will arrive in the best condition at yours.


    We won't be beaten on the premium quality of our live algae cultures, and surely not on the price either!

    Have you seen the same macroalgae somewhere else cheaper?

    Please just send us a message HERE and we will check your request within 24 hours ( working days only ).

    When we can match the other price we will send you a discounted offer which will be valid for the next 7 days after receiving our email.
    This offer will be just valid for purchases using the same email address provided before.

    The price match offer is only valid for identical, same size/amount and available macroalgae species.
    As a proud UK based tax paying business, we don't price match any offers against auction sites or from private sellers.

    The price match offer is just valid for UK deliveries. We reserve the right to refuse a price match request.

    If you have any questions please don't hesitate to contact us.

    Your Livealgae UK

      Find all Frequently Asked Questions here:

      Can you advise on the best light spectrum to use for the fast growing cheato. I have a kessil h380 with option of grow or bloom. I read conflicting advise on which is best to use for fast growth. thanks.

      Hi. Thank you for your question. We know that there are different opinions about what grow light spectrum is better for macroalgae to grow.
      When it comes to Chaeto we recommend to use the bloom setting with the Kessil H380 as it offers a bit more intense red light & a bit less blue light than the grow setting which is for Chaetomorpha a better choice from our experience.

      Both settings will produce though a good macroalgae growth. The grow setting we recommend more for red algae species, like Gracilaria for example.

      We hope this helps and when you have any further questions please let us know.

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    Reviews Reviews (29)

    Based on 29 reviews - 0 1 2 3 4 5,00/5
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    Excellent Service

    0 of 0 people found the following review helpful

    Excellent service, good amount of algae for price!

    0 1 2 3 4

    Fast Delivery

    0 of 0 people found the following review helpful

    Despite the potential problems with delivery in Covid 19 times, the product arrived extremely fast and a vibrant green colour. Thanks I will be ordering again from this excellent company.

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