[Enigma]

Can I split the Paraguard dosage for my HT into half and give it twice a day, twelve hours apart?

I dosed once yesterday at noon, at around 2/3rds the dosage for the tank. The fish were breathing quite heavily afterwards.

I understand that Paraguard only stays in the water for around 24hours, and the fish are breathing better this morning. I'm thinking they should be able to manage a dosage split.

Also, Purigen and GFO are in the canister filter on the HT tank. I don't want to take these out. Will lengthening the treatment compensate for the filter media and the 2/3rds total dosage? I think the filter media will remove the malachite green from the water.