Thanks for the quick answer, which provided a great deal of clarity! Okay, so I will just run a bare QT tank as necessary, and will medicate my new fish with something or other, which I will look into researching further as to what treatment to decide upon.
Thank you and yes bare QT is the way to go. I dont prefer copper right off until i know for sure fish has ich, but i do give new fish a must prazipro treatment.
So with new snails and shrimp do you just add them straight into the display tank, or quarantine them but not medicate them? And is there any particular risk of adding them straight in, in terms of diseases which they could nevertheless have on them from being with fish in LFS tanks? Would hate to see that nevertheless be a pathway for the introduction of something such as Marine Velvet...
inverts dont carry ich or marine velvet. i recommend a drip acclimation method for inverts. Inverts dont do well in shipping/transporting. nor they do good with water chemistry change. So check for salinity changes and paremeters and do a slow drip acclimation
When I mentioned denitrifying carbon pellets I meant carbon dosing bio-pellets,
http://www.bulkreefsupply.com/filter-media/biopellets/brs-bulk-biopellets.html not activated carbon. Would a bag of mature biopellets potentially be okay to add to the canister filter of a QT if I wasn't using a skimmer? (I heard you shouldn't be dosing organic carbon in any form without a skimmer, but I'm not sure of that).