I agree it shouldn't be this way. The reality is the cost and complication of setting up a large volume distribution facility in order to maintain disease free fish is nearly impossible. The frequency of inbound and outbound shipments make it so difficult due to the fact that the main treatment needed takes a minimum of 2 weeks to perform (Copper to rid ich/velvet). As well as the separation that is required for the different phases of a solid protocol combined with x number of employees working on all the different systems under one roof. Logistically its near impossible. Then Prazi for deworming is another 10 days or so. The larger wholesalers on the West coast who supply the big box and small mom and pop LFS see hundreds of fish arrive and depart daily. Most fish probably aren't even held there long enough to treat with a proper QT protocol.
So that leaves us with the task of treating them ourselves or purchasing from a smaller seller that orders the fish via wholesale and runs them through a solid protocol and then observes them for a short period of time in order to make sure the fish are disease free and healthy before selling them and shipping out. Some LFS are great some are not so great. We have one here in town that runs therapeutic copper on all systems but again unless the fish stay with the LFS for at least 14 days there is no guarantee that they are disease free when you pick them up. Some LFS just run a light dose or subtherapeutic level of copper which is even worse because the fish all appear healthy, yet they are still infected.
Petco specifically has strict rules that employees are NOT allowed to medicate even sick fish which is probably for the best unless they place a saltwater specialist in each store that is equipped to deal with it properly. A lot of these medications are poisonous to fish and an overdose in medication can kill the fish. Depending on which type of copper you use, the therapeutic dose needed to kill the parasites is just slightly lower than the lethal dose. It should be done in a very controlled environment with the proper equipment to monitor the Cu level accurately on a daily basis.
Certain genus/species of fish are more susceptible to certain parasites than others so personally I keep a wide variety of fish and prophylactically treat all my fish as they arrive for all disease and then observe for a couple of weeks post treatment before adding them to a permanent display.
For your specific situation you could use a 5g QT sitting on a dresser or counter in order to QT a couple of clownfish pretty easily. Brook treatment is pretty simple and if all you ever desire to keep is clowns that is the main thing that needs addressed. Brook can be treated a couple of different ways. I would allow your current DT to be fallow for the next six weeks in order to rid it of the brook that is currently present. If you need any help moving forward feel free to reach out anytime and I would be glad to assist where possible. Or if you decide to go fallow for 6 weeks and order a pair of clowns from a Pre-QT seller that may be an option for you as well if you just cant make a second tank work temporarily. Best of luck!
Brooklynella hostilis What You Need To Know: * This is most often seen in clownfish, but it can afflict any fish. The fish’s skin will appear to be peeling or sloughing off, oftentimes causing excessive white mucous to form around the affected area(s). * Treatment of choice is a 45 minute...
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