Metro and O2 displacement.

[rogge26]

I am about to do a preventative treatment with metro, then a dewormer and then prazi pro. Do any of these medications displace oxygen?
Would I be safe to run CO2 with any of these treatments or should I turn it off? Also does UV sterilization break down any of these medications?

[pcsb23]

Why are you treating? What are you preventing? Do you believe the fish to be sicK?

My advice would be not to treat unless there is a specific reason. All meds use O2 to some extent and UV will break down most meds so should be turned off as should CO2.

[Graham]

I agree 100% with Paul....do not use antibiotics or chems when they are not needed.

[rogge26]

I was going to medicate, because I just added discus to the tank and read somewhere to always deworm new discus. I would have to do the deworming in the main tank as I can not have a quarantine tank. The water limit in my apartment complex is 50 gallons and I have a 50 gallon tank. I see both of your reasoning and will not medicate unless I see a probem.
I am new to discus and am probably a little pyranoid.

[Graham]

Hi You might do a de-worming if they were wild but domesticated, shouldn't need iit...

[rogge26]

Thanks grahm. They are domestic and from an excellent source. I will follow your advice.