I bought some Vetsense Kilverm from a local produce store for $22/500mL.
Same Active constituent & strength as Big L, but $10 cheaper than where I saw Big L yesterday.

It is tinted Turquoise so it must be good for Discus!
Anyone used it?

thanks

Dave

PS:Goodoo,
I haven't seen too many good reports on Avitrol.
Something about another ingredient?
How are your fish?