Algae problems. Diatoms?

Fraz__

New member
Hello, everybody!

I need your help to understand the next step to take.
I have been having silica problems for several months. The ICP on osmosis water showed that I do not have silica in the osmosis. I think silica was present in the mantis biospheres. I say this because after adding another 1kg of mantis biospheres, my last ICP showed that the silica increased.

ICP Test (11-08-2023)
Silica - 1,007mg/lt
Po4- 0.018 (I've been dosing 0.22ppm/day, right now I'm reading 0.08ppm)
No3 - 35ppm

Questions:
1st- I would like you to help me identify, if this is diatoms?

2º- If it is diatoms, and since I have already eliminated the biospheres, how long do you think it takes the diatoms to consume this amount of silica?

3rd- What is the next step?

Thanks
 

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