Sick Clowfish; thinking ammonia, please help.

[PhishFriends]

I have had my tank up and running for 5 years, and have had two clowns and a Benghai cardinal the entire time.
One of my clowns just started breathing heavy and laying on the bottom two days ago.
This is following an algae RX treatment. I killed back my algae, notice my skimmer overflowed and started water changes again. That day the fish started acting funny.
Ive since done 4-20% water changes, and added an ammonia binder.
Ammonia never got above 0.25 and nitrates and phosphates are 0.3 and 0.12 respectively.
Im treating this fully like its an ammonia issue, but my biggest question is 'is it possible this is Brooklynella?' I haven't added any outside coral, water or fish in roughly a year. And in the past 3 years I've added frags that are always heavily dipped. Could I only be seeing a reaction now.
I am watching parameters closely, barely feeding, and keeping an airstone near my return pump. I can continue doing water changes if it helps.
Looking for some advice on how to proceed.
Thank you in advance.

 

[vetteguy53081]

I have had my tank up and running for 5 years, and have had two clowns and a Benghai cardinal the entire time.
One of my clowns just started breathing heavy and laying on the bottom two days ago.
This is following an algae RX treatment. I killed back my algae, notice my skimmer overflowed and started water changes again. That day the fish started acting funny.
Ive since done 4-20% water changes, and added an ammonia binder.
Ammonia never got above 0.25 and nitrates and phosphates are 0.3 and 0.12 respectively.
Im treating this fully like its an ammonia issue, but my biggest question is 'is it possible this is Brooklynella?' I haven't added any outside coral, water or fish in roughly a year. And in the past 3 years I've added frags that are always heavily dipped. Could I only be seeing a reaction now.
I am watching parameters closely, barely feeding, and keeping an airstone near my return pump. I can continue doing water changes if it helps.
Looking for some advice on how to proceed.
Thank you in advance.

Fish looks thin and Im ruling out ammonia in which your other fish and even inverts would be affected. Need better pic, even video as this one is dark from Blue lighting and best with white, no blue intensity.

 

[sgdnycct]

I have had my tank up and running for 5 years, and have had two clowns and a Benghai cardinal the entire time.
One of my clowns just started breathing heavy and laying on the bottom two days ago.
This is following an algae RX treatment. I killed back my algae, notice my skimmer overflowed and started water changes again. That day the fish started acting funny.
Ive since done 4-20% water changes, and added an ammonia binder.
Ammonia never got above 0.25 and nitrates and phosphates are 0.3 and 0.12 respectively.
Im treating this fully like its an ammonia issue, but my biggest question is 'is it possible this is Brooklynella?' I haven't added any outside coral, water or fish in roughly a year. And in the past 3 years I've added frags that are always heavily dipped. Could I only be seeing a reaction now.
I am watching parameters closely, barely feeding, and keeping an airstone near my return pump. I can continue doing water changes if it helps.
Looking for some advice on how to proceed.
Thank you in advance.

I think first is don’t stop feeding. They need as much energy to fight whatever is affecting them. Just don’t over feed. I can’t tell by the picture what’s going on but I suggest removing them from that water asap and treating in quarantine. Could be Brook. If ammonia spiked it would have weakened their immune system so really anything could be getting at them now.

Is the ammonia back to 0?