Do I need to keep my glass tank hood off while medicating my fish with Coppersafe?

Katdog

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I would love some help! I have a 10 gallon tank with 1 black molly, 1 red coral platy, and 2 dwarf Cory catfish.

I am a newer fish owner and noticed my black molly wasn’t doing so well. I had noticed long poos which now I believe may have been some parasites. Never white or clear, always colored so I still think it may just be from the colored flakes. However, I noticed some white spots on her and noticed she was not feeling well, laying on the bottom of the tank often and clinched fins. I did some research and believe she has ich or also called ick. I am treating my entire tank with Coppersafe. And am aware that my plants may die. But I would rather buy new plants then lose my fish.

I am worried the medication will suffocate my fish since I have a tight sealed glass lid to prevent evaporation. Will my fish be getting enough oxygen with the medication? Or should I take the hood off? Even for a few hours a day?

Please help, I do not want to lose any of my fish!
 

TriggerFinger

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Antibiotics are known to deplete oxygen, not positive about copper. Aiming a powerhead up to the surface will help with oxygen exchange. You may want to leave them off just to be safe. Do you have egg crate to use temporarily?
 
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Katdog

Katdog

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Just got one today! Thank you. I will use that lid temporarily while I treat my fish. Thanks for the help!
 
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