Thanks for replies, so far I have not seen any adverse effects to the fish but it is disconcerting to see all those hairs cloud up the water right after putting in a new filter pad.
Have tried washing and rinsing by leaving it in a clean bucket with water running on it, went away and came back 5 mins later, same hairs when swapped in. Also ordered another box from eheim off a different ebay seller in case I had a bad batch, no difference.
Originally Posted by mistersprinkles
Switch to this stuff
Will try !!