First I want to thank you for all the time you put into my questions in the past several years, you are truly an asset to this site! Reference Trigger and some of the fish I have lost in last 6 months, been ones I have had for years, the point you made about internal damage ? Your probably 100% right as you were aware I been battling parasites since I started this hobby ( as you know from past posts I placed), some til this day are mind boggling, so I think all the times I used copper power along with praziquantel and formalin a couple of times probably cause the internal damage to my older fish. The new ones seem to be fine only old ones seem affected.
Can you please answer one more question I know it's redundant proably but here it go's. I'm in my 5th day of praziquantel in DT, (used DMSO to mix) should I do a water change of 20% or just add the 7th day dosage(can I do it earlier second dose) and wait 3 days then do a water change of 40%. Does it really make a difference if I wait to do water change and yes mix Prazi with a nylon soak this time. Thinks again for you time and knowledge-CARL