35 gallon tank full of swords and anubias. Quite a few cardinal tetras and
blue tetras plus a few loaches, plecos (zebra) and a rubber eel. I've
noticed a few of my cardinals have what appears to be ick (white
spots)....and they are also not very active.

I see my problem as 2 fold. First of all...it's a planted tank and from
what I've read treatments for ick can be harmful to plants. Is this true??

Problem# 2 - if I'm not mistaken Quick Cure is lethal to rubber eels
(caecillian). I've got this stuff called Copper Safe...anyone know if this
would be safe to treat the tank with keeping the rubber eel inside?? If
there's nothing to treat ick that isn't harmful to my rubber eel then I'll
take him out and throw him into my 90 gallon cichlid tank while I treat the
35G. I don't think my eel has been effected....and I don't want to risk
losing him while treating the tank because rubber eels are somewhat rare (I
live near Toronto and I finally found some in Tonawanda, New York).

Problem# 3 possably - aren't cardinals more sensative to ick medication??
I've got around 20 of them. Should I lower the dosage??

Any and all help would be appreciated.

Kind regards..
Dave