I have been doing this along time, and yes i just had a bout of ich, just five days ago-who hasn't.
I made a big newbie mistake and turned off the two koralias in my reef for two nights, thinking my hob filter would provide enough oxygen-NOT!

I lost four fish due to a stupid mistake:redface:, and yes I'm embarrassed to say the least.

Two small fish made it through but I'm almost certain that they wouldn't have if it wasn't for Kents Garlic Xtreme. I have used this product before and I believe the natural benefits of boosting the fishes immune systems with this product is amazing. After five days of loosing four fish I'm 99% sure these other two fish will survive the outbreak.

It's not a cure for all fish health problems due to reef keeper error, but it has helped save some of my fish some of the time:biggrin:

I'm curious as to whether you have ich or, worse, velvet. Ich doesn't always kill so fast. Care to post a pic of your infected fish? Maybe one of us could confirm it for you.

What would a foam block do ?

It gives you the bacteria to put in your QT

Zactly. A huge factor in my fish loss was not having a mature biological filter to use on the treatment tank. Huge NH4 spike caused damage to the gills of most of the fish, which when sick, made it impossible to recover. A foam block fully matured would have avoided that.

I'd like to read up more on that got a link ?

On what, exactly?

Just trying to wrap my head around a foam block in the sump. I'll google it

Oh, simple. Essentially I'm using a foam filter block from an aquaclear filter. I drop that in the sump in an area of flow, and over a few weeks, it becomes colonized with nitrifying bacteria. Some people use round foam filters, bio-balls, excess LR rubble. any material with a large surface area that can hold a lot of bacteria.
Then, in my case, should I need to set up a Q tank or treatment tank, I can add the foam block to my aquaclear and presto, a fully mature (cycled) filter to remove NH4 and NO2 from the tank.
Some foam filters are air driven, some fit in canisters, etc
And it's in the sump just to keep it out of site. You could float it around in your tank :) It's not specifically a sump thing...

Duh !! Got it now