I use a 5.5k bulb over my chaeto. Perfect place for your pods and fish food to reproduce. Grape caulerpa ( Caulerpa racemosa ) herbivore food. Safe macros to grow in a fuge.
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I do not I have a 20 gallon AIO.I just stick the CheatoMax refugium LED on to the back glass to light up the first chamber of my 14 AIO to grow algae. Used to grow chaeto in there but algae is a lot more efficient at removing the nutrition. check out algae scrubber if you have a larger system.
I don’t think it will work well there:Any other algae I can use? I want to help with nutrient export and put some of it in here.![]()
I would do a DIY algae scrubber to maximize oxygen and algae growth if I have a sump. But for a 20 AIO I would just put the ChaetoMax LED to the back glass and grow algae. it's a good quality light, simple to do, no extra plumbing require, clean looking and out of sight. mine take about 2 week to establish and algae stop growing in the display after that. CUC take care of what little that grow. I also have a skimmer but it stop skimming and only oxygenate the tank after the algae takes off on the back chamber of my AIO.I do not I have a 20 gallon AIO.
Ok, that’s not soo bad. I occasionally feed some of my chaeto to my foxface in a frag tank that I struggle to keep nutrients above zero.FOWLR tank. It grows like wild fire and the Tangs love it.
Pictures? What’s the scientific name?herring bone caulerpa
Probably referring to caleurpa serrulataPictures? What’s the scientific name?

Any other algae I can use? I want to help with nutrient export and put some of it in here.![]()

Looks like it’s caulerpa taxifolia, and could potentially be an invasive algae? My LFS often had it on in the past few years under herring bone caulerpa, but if it could be an invasive species, perhaps avoid lolPictures? What’s the scientific name?
I agree. With my experience with chaeto I had lots of gha and elevated nutrients so it worked well in my situation. Seen lots of folks try chaeto and dies out or doesn't grow because they don't have enough nutrients for it.Technically you have to remove the chaeto to remove the nutrients, but while they're all bound up in the chaeto, they act as if removed from the tank. Some people remove a chunk frequently, some people remove a huge chunk less frequently.
Though, question: are you trying to fix an actual problem (unhappy corals, algae beyond what CUC can control, etc), or are you chasing numbers? Make sure you actually need to remove nutrients, before setting about removing nutrients.

