How Am I Gonna Do This?

[FishyFishy!]

I would personally never medicate a display tank. I would always get a QT and run a HOB filter with floss and bio media only.

What I do is have a HOB filter running on my Display or display sump at all times to keep it cycled. Then when I have a problem, I fill my 30 Gallon QT with tank water in the form of a water change on the display. Then transfer my already cycled HOB filter to my QT tank. Then medicate until they are better.

Once better, I do a water change on the QT, wait another week or two, then put them back in the Display tank after a drip. I then usually dump the media from the HOB filter in the garbage and do a good cleaning/bleach/water bath on the filter unit before placing it back on my Display sump with brand new filter media.

Since starting to do this method I haven't lost a single fish to illness, and actually haven't had an outbreak of anything in a long time (knock on wood).

In answers to your other questions, I think a 10-30 gallon tank is ok. I use a 30 and it works fine. Conditioned tap water should be fine. I use PRIME, it's the best IMO. Leave fish in for at least 2 weeks of treatment. Then another week or more for Quarantein to watch them afterwords. Medicating is not a fun process!

[Enigma]

Thanks, guys! You've helped a lot.

I'll pick up some filter floss and some biomedia. When I get the filter (probably Saturday), I'll stock it with the floss and media, and get it running on the display sump. How long should I leave it connected? Will a week or two be okay?

When we install the new 40B display tank (in a week or two), and I get all of the corals, inverts, and rock moved into it, I'll move the fish into the QT tank.

Alternatively, I think I could simply opt to treat in the tank the fish are in (a 10 gallon) once I have everything else moved and it is removed from the common water system, and use the seeded Fluval 305 on that. I would lose the sandbed, but it is only a couple of months old. That water changes would be a lot smaller, and I wouldn't need to use the glass casserole for the Goby. I'd just add some PVC pipes for the fish.

I do kind of want to try to save the sandbed in the current display. But, if Brooklynella or the intestinal worms in the other fish could live part of their lifecycle in it, then I'm perfectly happy to lose it.

Having now found an article on Brook, apparently the display should be left devoid of fish for four weeks as a result of Brook.

I'm leaning towards treating for worms and Brook at the same time. The Clown is a really tough little guy (he's been through two tanks moves), but I'm concerned about stressing him too much.

The process is starting to come together for me. I really appreciate the input.