ORP wont increase even after ozonizer

[Rameez]

Hi all.
i 've installed an Enaly ozac plus 200 ozonizer on my reefer 750 ( 200gal) . Orp before ozone was staying around 300 to 325 but next day after installing it dropped to 290 . 3 days after i did a water change orp increased to 370 and later after 2 days it dropped to 300 i have set orp in my neptune at 370 to 380 , tried diff settings on ozonizer i.e running it at 25% 50 % and 100% nothing works. orp probe and ozonizer are working fine checked on friends tank. he even checked my tank's orp with an orp meter which was almost same as my neptune probe reading. tank's water is crystal clear . saw a major clearity after running ozonizer . but i m unable to get thes orp readings. can anyone help with it that wats rong with my orp ?
( sorry for my bad english )

 

[Reeferdood]

How long are you running ozone and how are you introducing it to the water column? I run ozone for one hour just after the lights go out and do not see any change in ORP. However, the ORP and pH rise and fall exactly opposite one another like they should. 300-325 does not mean anything is wrong, all tanks will read ORP differently. You should look for trends on fusion and use that for a baseline and don't worry about chasing high ORP readings or trying to raise them with ozone. If you are dead set on raising your ORP more then you could try a quality Rox carbon, I use Rox and ozone and my ORP peaks @420 every day.

 

[Rameez]

Its been 2 weeks i m running ozone . Injecting via skimmer and i m also running using redsea carbon. I start running ozone just to get algae in control .

 

[Rameez]

Ruuning ozone 24/7

 

[Reeferdood]

Ozone will not help with algae whatsoever.....
Can you tell us more about your system and all of your parameters so someone can get you pointed in the right direction.

 

[Reeferdood]

24/7? Do you smell it in the house at all?

 

[Rameez]

No3 po4 are 0 . Alk 8 ca 420 mag 1400 . Running 200 gms of carbon and gfo . 800 ml of bio pellets . Skimmer collection cup is covered with carbon in bags. Aquarium started in march 2018

 

[Rameez]

24/7? Do you smell it in the house at all?

I have ventilation in room so there is no such smell