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Red SPS bug / Interceptor treatment


Steve973

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Hey all,

 

Since not too many people here have had experiences with the arthropods that feed on SPS corals (mainly acros), I thought I'd document my experiences, and hopefully they'll help someone else if they have this problem. I read Mattie's thread, and he seems to have had some success with this method.

 

My signature shows my tank specs, and I figured I'd be able to achieve good coloration in SPS corals in my tank. I know that isn't all there is to it - a good maintenence schedule is also very important for nutrient removal. I change 25% weekly, and I take care not to overfeed. However, most of my SPS corals are not very colorful. They're basically tan. So I have been trying to figure out what's going on, and eventually I noticed tiny red "mite" sized things on my coral, and I remember reading about them. I did the research, and found that I can treat them with a dog's heartworm medication called Interceptor. So here's what I did:

 

I ground the pill with a mortar and pestle. The recommendation is that you use 25 milligrams of the pill powder per 10 gallons of actual (after displacement from rock, sand, etc) tank water, and dissolve that in tank water or purified water. The powder isn't very soluble, but if you grind it very fine and shake it a lot, it will go into suspension for a short time, which is enough to pour some in. Well, I don't have a milligram scale, and knowing that the pill is approximately one gram, I dissolved the whole pill in 500 milliliters of water. That would mean that I'd need 12.5 milliliters of solution per 10 gallons of tank water, since 1 ml would contain 2 mg of the pill. I have an 18 gallon tank, and I have plenty of live rock and sand, but I overestimated my tank water at 20 gallons. Plenty of people overdosed their tank, so I feel that I'll be safe.

 

I dosed the tank at 7:30 this morning, and I'll do a 25% water change and add a bag of carbon at 1:30 pm this afternoon. I'll post again afterward...

 

Steve

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Thanks for the "DIY" medication regimen Steve!

 

Any info in your research on "side effects" on corals? Can you post the active ingredient(s) of Interceptor?

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I just got back from changing 20% of the water in my tank. I also added a small bag of Kent's Reef Carbon to help pull the remainder of the medication out of the water.

 

I have noticed that most (if not all) of my hermit crabs are dead. That sucks, since I didn't want to kill anything, and I've had them since I started my tank about a year ago. But I knew the risks, and I am sure this will help the overall health of the aquarium. I know some people here don't like crabs, but these have been very well-behaved.

 

The impact on the corals looks very positive. I see polyps where I hadn't seen polyps in a very long time, and I cannot see any more red bugs. I'm encouraged that I'll see a general improvement in the health of the 2 different corals that had been affected by the red parasites.

 

I'll do another 25% water change tomorrow, and replace the carbon. I'll detail my treatment next week, as well.

 

Steve

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I treated my tank 8 months ago......haven't seen a bug since!!! I removed all my hermits and didn't replace them until after the second w/c.

 

The bugs only infest acroporids, not all SPS. Hydnophora, seriatorpora, Montipora, etc. are not hosts for the bugs.

 

Any Acroporids going into my tank get an inteceptor dip.

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Thanks for the info Steve, it's helpful to have a volunteer guinea pig in the crowd!

 

I'm glad to hear you're seeing such quick positive results on your corals. Since it affects crustaceans, have you seen any effect on your pods? Any other interesting effects others might want to know about?

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Originally posted by onthefly

The bugs only infest acroporids, not all SPS.  Hydnophora, seriatorpora, Montipora, etc. are not hosts for the bugs.

 

Something that you might be interested to know - my orange montipora dititata was one of the worst-affected corals. There were "bugs" all over it! If you look at my full tank shot, it's the coral that's closest to the upper-left of my tank. I know they are not supposed to infest montiporids, but it appears that it's not impossible...

 

Steve

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I did my sencond water treatment (day 2) and replaced the carbon and added some rowaphos in the carbon bag. I'm not sure about the dosage amount of rowaphos, so I used a teaspoon with kent reef carbon.

 

Still no sign of red bugs.

 

Steve

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Good job Steve...are you going to retreat? I never did and the bugs are gone.

 

I know the bigger tank require 3, but I think nano's can get away with one (maybe up the dosage like I did) or two (normal dosage)

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I'm going to retreat at least once. Probably twice, just to make sure that they're gone, since I have the stuff mixed up in water already. And after 2 water changes and the use of reef carbon, my water looks absolutely crystal clear. So at least i'm getting a couple forms of nutrient export there. It's a bit off-topic but I'm planning on dosing some vodka too.

 

Steve

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My water quality is visually very good, and I don't have detectable nitrates. I'm not sure about phosphates, since I don't have a kit for that, and my organics kit was too old when it arrived. (salifert is sending me a new kit in the mail)

 

I figure that something is amiss, since I have some semi-calcerous algae that i can't seem to get rid of. The species are: lobophora variegata, padina, and stylopodium zonale. Have a look at these on google. Strangely, I don't have hair algae issues. I'd like to try attacking it by eliminating nutrients and seeing what happens.

 

Steve

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Rather than dosing Vodka.....try a phosphate remover first!!

 

I've read that dosing vodka will only work if you have NO3 and PO4 around. Besides vodka will rev up your population of bacteria......and if you decide to stop dosing......you could have die off. Also, I've heard some people have had issues with a film like substance on their glass and LR.....I assume it is the bacterial bloom.

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