Margaret asks:
> Just tapping into your expertize :  Can anyone advise on the use of
> Colloidal Silver  to treat 'White Spot ' ,( on  fish ) in a home fish
> tank  ?  

It's good that you asked, Margaret. Please realize that when you add 
any kind of medicinal to the tank, (including antibiotics) you're 
treating not just the fish but the entire tank. That includes the 
biological filter, which is the mass of helpful bacteria that populate 
the gravel and the filter system and convert toxic fish wastes to more 
benign chemicals.

If you dose the tank with an effective antimicrobial like CS, you'll 
kill all those bacteria. This will dump all the metabolic by-products 
and toxins from the guts of those bacteria into the water, as well as 
interrupt the process of breaking down harmful ammonia and nitrites 
from fish waste products and uneaten food.

You'll have a rapid build-up of wastes and toxins that could shock and 
kill all the fish. 

If you intend to treat the whole tank, about the only thing I can think 
of to do is to be prepared with a large amount of properly conditioned 
water (temperature, pH, alkalinity, etc...) and do a series of major 
water changes while you are medicating the tank. You'd probably have to 
adjust the dose levels to account for the amount being lost, as well.

Otherwise, you might transfer the ailing fish to a very simply equipped 
quarantine tank and treat them there. The important thing is to be sure 
the water is as close in chemistry and other conditions to the main 
tank to minimize the shock to the subject fish. Also, you'll still have 
to monitor waste build up and filter or change the water to limit it to 
safe levels.

Any way you cut it, it's either a lot of work for you or a lot of 
stress for the fish.

It's been some years since I had fish tanks going, and I'm *not* an 
expert with using CS or anything else on fish. I just know that there's 
more to consider than "will CS kill ick?"

If you need more information, please keep asking.

Be well,

Mike D.


[Mike Devour, Citizen, Patriot, Libertarian]
[[email protected]                        ]
[Speaking only for myself...               ]


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