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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