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Thread: Costia - Help!
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20-03-2019, 10:14 AM #41
Hi Pip
Unless you have evidence that the issue is definately Costia then I would focus the efforts on catching and scraping to get a positive diagnosis.
Lee Burroughs may be able to help if you having problems with the scrapes, he has a mass of skill and experience and getting things done right first time rather than guessing at the issues will save a load of pain.
From the syptoms you describe I wouldnt be confident that Costia is the underlying issue, they do tend to pop up as a secondary critter on a weak fish but Gill Flukes (which at times can be more difficult / illusive to spot than Costia) are a real possibility from the symptoms you describe
In a pond with high organics then PP is pretty much a waste of time, certainly at the dose required to impact on Costia.
I wouldn't be throwing in MG&F unless you knew that it was the most appropriate treatment for the issues you have. Whilst it may knock back GF (if that is the problem) there are far more appropriate and less aggressive treatments if GF are in there.
Temperature wise, if you can then get the fish up to 13C+, they will then have some immune response, 15C would be better if that's possible.
Lee's contact details are http://www.lbaquaticconsultants.co.uk/
Dave
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20-03-2019, 10:18 AM #42
I think FMG is the way to go I'm not that far of on temperature actually and we are in for a mild spell. Only does anyone know what the effect might be on invertebrates in a wildlife pond?
I have 30% Formaldehide recomended dosage 10ml in 150gal. Malachite at 1% recomended dosage 10ml in 175gal. Is that the dosage you would recomend?6000g in ground koi pond
+3000g lily/Anoxic pond attached
29 koi (40 to 65cm)
Bottom drain, Mid water & Skimmer to Drum
JBR boichamber->Blue eco 500 pump ->below surface return.
Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)
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20-03-2019, 10:26 AM #43
costia were definately present - confirmed by scrape. I have only treated half the pond with PP and there are fish in the wildlife side to so I presume costia are still around.
Realy don't like treating - worried about the wildlife - but I don't like loosing fish even more!6000g in ground koi pond
+3000g lily/Anoxic pond attached
29 koi (40 to 65cm)
Bottom drain, Mid water & Skimmer to Drum
JBR boichamber->Blue eco 500 pump ->below surface return.
Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)
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20-03-2019, 12:41 PM #44
If a fish is on its last legs then it is not uncommon to see Costia on a scrape. They can have a field day and be present in vast numbers.... on that fish. It is not unusual that the issue is confined to that individual.
To get a true picture of the issues you need to scrape 4 or 5 Koi.
Total agree you don't want to add anything unless it is necessary, You have been around long enough to have seen the many posts where Guys have got into a spiral of adding this than that to their pond exposing the fish to a barrage of different treatments leading to an increasing cycle of issues.
What I am suggesting is that you do everything you can to make sure the target is identified and the appropriate treatment added, you may be right that there is a systemic issue with Costia in the pond but if you are not then a whack with MGF will simply make things worse.
A call to Lee to chat things through will cost you nothing, he is a helpful, friendly skilled Guy.
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20-03-2019, 11:32 PM #45
Update - today - I decided to up the temperature to that recommended for FMG and noticed the two sulking fish have begun being a bit more active and taking food.
I will take your advice and do a few more scrapes tomorrow before doing anything. Normally I wouldn't have been panicking over their behaviour tbh - I often see it at this time of year - it's just having lost one... And never having seen Costia before.6000g in ground koi pond
+3000g lily/Anoxic pond attached
29 koi (40 to 65cm)
Bottom drain, Mid water & Skimmer to Drum
JBR boichamber->Blue eco 500 pump ->below surface return.
Blue Eco 240 -> Large MB -> Waterfall -> Planted Anoxic pond (25 baskets)
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24-03-2019, 09:04 PM #46
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22-04-2019, 10:50 PM #47
I use 1g of potassium permanganate to 10 liters of water for dips, 5-7 minutes. 2-4 g per 1000liters for pond treatment depends on the stocking density. One thing to note however, potassium permanganate treatment can push sick fish over the edge so it’s best to use half the dosage on sick fish.
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23-04-2019, 08:35 AM #48
its best not to use pp as a dip full stop
The Daily pond temp thread
Still at around 17C, know what you mean about getting the covers off though :D it will be really...