Location
Brazil
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Let me share with you a very interesting observation I’ve made... and intriguing...

My chaeto was not doing well because of low nutrient conditions... So I just decided to remove it and turn off my fuge nocturnal lights.

0C4918F2-C559-471E-B5E9-723D99AFBF09.jpeg


My nocturnal ph drop reappeared.

BA8CF4A7-E087-49E0-841C-BFB5495CE6E8.jpeg


Then I just decided to put some very small frags on the fuge and turned my fuge light back on...

Surprisingly, with no algae on the fuge and those really tiny frags I just noticed my ph drop being readly attenuated again.

67E618B6-D3ED-458C-8B3C-B30BC4455ACC.jpeg

My interpretation is that it seems there are far more microscopic photosynthesizers than we usually assume. I have no concrete evidence of that.

58A42281-86F1-4FDA-A66A-7466555936A5.png
 

Ocelaris

Experienced Reefer
Location
New Jersey
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Yeah, I think it's hard to draw conclusions; it can also vary dramatically by the amount of food fed. On days that I feed a lot my pH drop is much steeper, even continuing into the night. It's not reasonable that a few frags would be able to consume that much CO2.
 
Location
Brazil
Rating - 0%
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Yeah, I think it's hard to draw conclusions; it can also vary dramatically by the amount of food fed. On days that I feed a lot my pH drop is much steeper, even continuing into the night. It's not reasonable that a few frags would be able to consume that much CO2.

Yeah, it keeps happening. No chaeto and the night drop is quite small. Neither do I think those corals are doing this, maybe microscopic plankton...
 

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