NO³ PO⁴ Overdose

[Bkatz1]

I completely screwed up my NO³ PO⁴-X dose. It was my first dose in 6-8 months. And I normally dose 18ml, as my tank size is 150.

I accidentally just dosed 50ml's into the tank.

I'm mixing up 30gl of fresh saltwater right now and added a large bubble stone to the sump. I also have my protein skimmer running as always. I can not believe I just botched this dose after not using NoPox for 6-8 months.

How concerned should I be? Other than water changes, and the added oxygen stone, is there anything else I can do to get back to where I was?

-As of right now-
Salinity 1.025
PH 8.0
Ammonia 0
Nitrite 0
Nitrate 30ppm
Phosphate .50ppm

NO³PO⁴ has been in for 1 hour. Thank you all in advance.

 

[EeyoreIsMySpiritAnimal]

What were the nitrate and phosphate levels before you added the no/po?

 

[Bkatz1]

What were the nitrate and phosphate levels before you added the no/po?

They are listed above

Nitrate 30ppm
Phosphate .50ppm

 

[Luckki]

I'm not sure about what else you can do but if you are trying to get that down to 18ml wouldn't you have to do more than a 20% change? I believe a 20% change would only decrease 50mls to 40mls. I believe you would have to do about a 36% water change to get rid of the extra?

 

[Bkatz1]

I completely screwed up my NO³ PO⁴ dose. It was my first dose in 6-8 months. And I normally dose 18ml, as my tank size is 150.

I accidentally just dosed 50ml's into the tank.

I'm mixing up 30gl of fresh saltwater right now and added a large bubble stone to the sump. I also have my protein skimmer running as always. I can not believe I just botched this dose after not using NoPox for 6-8 months.

How concerned should I be? Other than water changes, and the added oxygen stone, is there anything else I can do to get back to where I was?

-As of right now-
1.025 Sal
8.0 PH
0 Ammonia
0 Nitrite
30ppm Nitrate
.50ppm Phosphate

NO³PO⁴ has been in for 1 hour. Thank you all in advance.

I'm not sure about what else you can do but if you are trying to get that down to 18ml wouldn't you have to do more than a 20% change? I believe a 20% change would only decrease 50mls to 40mls. I believe you would have to do about a 36% water change to get rid of the extra?

I only had 30gl available right now. I'll have another 30 or 40 of RO to mix up by tomorrow morning. The plan is to just keep changing the water out. But at 50ml of NO³PO⁴ how dangerous is the dose given there was nothing in there prior. This was the first dose in 6-8 months.

 

[EeyoreIsMySpiritAnimal]

They are listed above

Nitrate 30ppm
Phosphate .50ppm

So, what are they now, after you added the no/po?

 

[Bkatz1]

So, what are they now, after you added the no/po?

I just retested and they are still

Phosphate. 50
Nitrate between 25 and 50.

The overdose of NoPox has been in the tank for less than 2 hours still.

 

[EeyoreIsMySpiritAnimal]

I just retested and they are still

Phosphate. 50
Nitrate between 25 and 50.

The overdose of NoPox has been in the tank for less than 2 hours still.

It's probably going to be fine then.

So, did you overdose nitrate and phosphate (like your original post says) or NoPOx? NoPOx is carbon and will lower nitrates (possibly phosphates to a small degree), and might cause a bacterial bloom. You've done the right thing adding the airstone.

I assumed you had dosed nitrate and phosphate to your tank...

I completely screwed up my NO³ PO⁴ dose.

 

[Bkatz1]

It's probably going to be fine then.

So, did you overdose nitrate and phosphate (like your original post says) or NoPOx? NoPOx is carbon and will lower nitrates (possibly phosphates to a small degree), and might cause a bacterial bloom. You've done the right thing adding the airstone.

I assumed you had dosed nitrate and phosphate to your tank...

No, I only over dosed the NOPOX.
I do not dose anything into this tank. The high Nitrate and Phosphate is from feeding.

I was using the NOPOX to lower the Nitrate and Phos to potentially add corals. Right now it's a FOWLR with 2 nems.

 

[Bkatz1]

Just completed a 30gl waterchange. UV, Skimmer, and airstone are all running. PH dropped a little but came right back up after WC. Fish all seem ok so far. Will follow up in the morning. Thanks to everyone who chimed in.

 

[gbroadbridge]

I completely screwed up my NO³ PO⁴-X dose. It was my first dose in 6-8 months. And I normally dose 18ml, as my tank size is 150.

I accidentally just dosed 50ml's into the tank.

I'm mixing up 30gl of fresh saltwater right now and added a large bubble stone to the sump. I also have my protein skimmer running as always. I can not believe I just botched this dose after not using NoPox for 6-8 months.

How concerned should I be? Other than water changes, and the added oxygen stone, is there anything else I can do to get back to where I was?

-As of right now-
Salinity 1.025
PH 8.0
Ammonia 0
Nitrite 0
Nitrate 30ppm
Phosphate .50ppm

NO³PO⁴ has been in for 1 hour. Thank you all in advance.

Don't worry about it, it won't cause any problems.

edit: Oh I see you've done a water change. A water change wasn't necessary, but it won't do any harm

 

[SPR1968]

I don’t think you need to panic and do anything, you might get a bacterial bloom, so cloudy water/slime but unlikely.

When I used it in a similar tank size I was dosing about 30-40mls every day due to a very high fish load.

Looking at how the tank looks, I would maybe question why your using it anyway at the moment it looks beautiful.

Also just note that Nopox has very little effect on phosphate levels so you might need to address that with something else in the short term. I have used rowaphos for years, but now use ATM agent green when needed. It works and is very simple.

 

[I never finish anythi]

I would worry at all tbh . It's not like it works straight away so just chill and ride it out .

 

[Randy Holmes-Farley Verified Community Expert]

I agree with others that this size overdose is no concern and nothing needs to be done. It might even be useful and better than the dose you were using.