Help! Whats wrong with my Oscars!

[Floridapierce78]

I have 2 Oscar's in a 125gal long with plenty of filtration. Bi-weekly water changes and have not changed anything in months. But I did add fluvals Bio-Fx to the FX4 about a month ago.. They seem to be hanging out I'm the bubbles allot and are forming weird patches like there skin is faded or blistered. I will post pic. Any insight is greatly appreciated.

4 new items by Edward Pierce

photos.app.goo.gl

 

[Ichthys]

Water parameters would help. I suspect there’s a nitrite presence.

The pictures don’t work for me.

 

[jaylach]

Image failure here too.

 

[Floridapierce78]

Water parameters would help. I suspect there’s a nitrite presence.

The pictures don’t work for me.

I'm sorry, I forgot the water parameters.
G.H 180
K.H 180
P.H 7.5
Nitrite 0
Nitrate 40.
I know the nitrates are high. They always have been. No matter how many water changes. I cannot get below 20. That's a 50% water change everyday for 3 days. So I just do 2 a week and it stays between 20 And 60. I have a 125. So, that's allot of water. After the last water change the Oscar's magically got better. I'm wondering if I had an ammonia or nitrite spile do to the adding of the Bio- fx into the FX4

 

[Floridapierce78]

Water parameters would help. I suspect there’s a nitrite presence.

The pictures don’t work for me.

Im.sorry, I did t realize my camera was taking pictures H.E.i.F mode. I fixed the issue. But the Oscar's are fine now. They looked like they had gotten a sunburn. And skin about to peel.

 

[Ichthys]

Sounds like nitrite. Bio-fx is a porous medium so I guessed you started to get a little denitrification from anaerobic bacteria (NO3 -> NO2). Sounds like it’s up to speed now.

 

[Floridapierce78]

Sounds like nitrite. Bio-fx is a porous medium so I guessed you started to get a little denitrification from anaerobic bacteria (NO3 -> NO2). Sounds like it’s up to speed now.

Is thr bio fx as good as they claim? I tried matrix and purigen I couldn't tell they were even there

 

[Ichthys]

I think all porous media are pretty much the same. But they need to be kept very clean to work as porous media, or the pores will get blocked, so any of them can work or not work. If they’re not kept clean they’ll just work as non-porous.

 

[Floridapierce78]

Sounds like nitrite. Bio-fx is a porous medium so I guessed you started to get a little denitrification from anaerobic bacteria (NO3 -> NO2). Sounds like it’s up to speed now.

Figured I would show off my gentle giants!

 

[Floridapierce78]

I think all porous media are pretty much the same. But they need to be kept very clean to work as porous media, or the pores will get blocked, so any of them can work or not work. If they’re not kept clean they’ll just work as non-porous.

Well, I have them i have 3 trays full I'm a fx4. Behind the 1 level of sponges to a secondary layer of tighter sponges behind nitrogen reducing mats. And after the Bio -fx is 2 layers of filter floss. Figured I would clean the fx once monthly now instead of 3 months