Can diatom bloom in 7 month old tank

bobssecrtsn

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Hello internet gang!

My tank has been set up for 7 months now, and recently I've dealt with Prorocentrum Dino's and finally managed to get rid of them, If you would like to read how I got rid of them CLICK ME! POST #9,236 .


Now my nitrates been 40-50 PPM (using salifert ) (looking to the side it is over 100+). and my Phosphates has been .08-.1(Hanna Checker). since the defeat I've been getting some brown dusting on my sand, In shaded areas of them to be exact. upon looking at them in a microscope, they are slow moving, and do not look like any Dino cells to me.

My RODI has a silicabuster and it reads ZERO at the output.

1. Can diatoms bloom with nitrates and phosphates at this particular level? From my understanding they only bloom with Silicates in the water.
I just started vinegar dosing yesrerday, to lower nitrates. and I am still dosing NEOPHOS to keep phosphate levels detected.
I am also running a ATS 19hrs. I will start running the full 24hr method to decrease my nitrate levels as well.

I forgot to add that these cells looks like Pennate Diatoms to me, But I have not confirmed it. If anyone can confirm that will be gREAT!!

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