I'm not sure we can be certain whether it was the ich, medication or the combination of both that did in your Rainbows and Cory. Switching to Para Guard might make things better (I mean you did lose fish during the maracide treatment after all).
I think Para Guard (made by Seachem) is superior and safer than any other external parasite medication I've used. The primary active ingredient in Para Guard is similar to what's in Maracide. It contains no copper or formalin, but rather "...employs a prorietary, synergistic blend of aldehydes, malachite green and fish protective polymers." I've used just about every Ich medication on the U.S. market over the years and Para Guard is the safest and most effective in my experience.
One other question, are your water parameters within normal ranges and is your pH stable for both the tank and replacement water?
Nerina wrote:Do you think switching to another med at this point could cause problems? Someone else had said this could stress my fish further, especially rainbowfish...there is only one left though.
I am looking to purchase para guard to keep on hand ...is this a Seachem product? The one I saw online I think was copper based but can't remember. What is the active ingredient(s)?
As for the Kuhli's...I've had mine for a couple months now and they were labeled "black" but look brown to me. They seem a happy bunch and hide under the slate that holds a piece of my driftwood. They come out at night when I feed them, like wriggling earthworms...they really are cute. I swear one has almost doubled in size. Hopefully they will be long lived.
Nerina~
My best friend is a cat.