Chaeto with low phospate

[Fraz__]

Hello, everyone

I'd like to hear your opinion.
I have 35 nitrate and 0.00 phosphate on hanna, on recent ICP I have 0.018 phosphate. I was trying to control nutrients with carbon dosing. However, I decided to put chaeto to control nutrients. Since I'm low on nitrate I'm dosing about 0.08 ppm diluted per day of PhosPlus, from reefzlements. I still can't get readings on hanna.

Do you think that by dosing this daily amount of po4 the chaeto will be able to thrive and consume No3?

Thanks

 

[kharmaguru]

Just adding the phosphate will cause some nitrate to be utilized by everything in the tank so it's a fine plan IMO. You may need to supplement iron for the chaeto. Easiest way is Brightwell Chaetogro and possibly iodide but other potentially undesirable algae will like it too.

 

[Fraz__]

Thanks.

But i allways have 0.00 po4 read on Hanna. I also have a lot of silica and I notice that since I increased the dosage of po4 I have a boom in diatoms. But I'd rather than have dinos. I don't know what else to do. I'm increasing the dose of po4 for chaeto to bring the NO3 down.