In a message dated 98-01-17 00:41:15 EST, Chen writes: << has anyone tried the mardel product, maracide? i have lost fish due to > using that product which is supposed to be safe. the fish affected were > usually catfish. it's embarrassing because ick is supposed to be an easy > disease to cure. >> I always use "Ick Guard", by Jungle. Catfish seem to be sensitive to most ick treatments. If you can separate them out to another tank, you might consider using the old "Heat Treatment on the cats. Someone old enough to remember comfirm the temperature setting, please. I think it is like 90F for three days? I've also heard that one TBSP of table salt (non-iodized) per 5 gallons of water will kill ick in about a week. I've never tried that approach. Bob Dixon