Check my math please

988 Views 10 Replies 5 Participants Last post by jaidexl, Dec 22, 2007

mistergreen

Discussion Starter · Dec 21, 2007

This is a lot like dosing ferts but this is deworming meds instead....
ok.. I don't have a sensitive scale...

I was given 18.15 gram levamisol hydrochloride in a 500 ml bottle. The target dosage is 2mg - 5mg/L in the tank.

ok...

The given above would give me 36,300 mg/L..

so if I take 1ml of this solution I would have 36.3mg of levamisol..

If put this in 10G/38L, I would have .947mg/L in the tank... So I would need to squirt in 2-5 ml of the solution?..

thanks.

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annedee

· #2 · Dec 21, 2007

math seems logical to me, but i'm getting .955mg/L 36.3mg/38L = .955 mg/L
unless a 10G isn't exactly 38L (i don't know that one)

also keep in mind though that with a ten gallon, that's the volume of water it can hold to the brim empty. that doesn't take into account that you have substrate, filters, heaters, plants, rocks, wood, etc. i think i've heard a 10G generally is really only 8G of water. 1ml then would give you 1.19 mg/L it's a small difference numerically, but can mean a lot sometimes chemically.

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mistergreen

Discussion Starter · #3 · Dec 21, 2007

thanks... yeah, I rounded 10G = 38L. it should be 37.85L. But you're right about the displacements with substrate, rocks and such... I'm the the ball park at least.

I'm not in a risk of overdosing this med. I was afraid i might have under dosed.

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mfp1016

· #4 · Dec 21, 2007

You could probably also measure this via pH fluctuations if you have a pinpoint.

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ikuzo

· #5 · Dec 21, 2007

sorry but,
what's the purpose of adding levamisol hydrochloride?

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mistergreen

Discussion Starter · #6 · Dec 21, 2007

ikuzo said:
sorry but,
what's the purpose of adding levamisol hydrochloride?

it's a dewormer drug. I found a Camallanus nematodes sticking out from one of my barb. The first sign of a fish with this parasite is that it's always skinny and then after a few months it grows large enough to stick out of the fish's anus..

Not a pretty parasite.
Here's more info on worm parasites and treatment. http://edis.ifas.ufl.edu/BODY_FA091

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ikuzo

· #7 · Dec 22, 2007

that's a nasty worm. the worst case i've had is argulus on my goldfish and dimilin works like a miracle.

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mistergreen

Discussion Starter · #8 · Dec 22, 2007

ikuzo said:
that's a nasty worm. the worst case i've had is argulus on my goldfish and dimilin works like a miracle.

really? I thought dimilin works on external parasites.. My fish has internal parasites.

Well, Levamisol works great. After a day, the worm is gone.. I'll just have to redose in 2 weeks to make sure it's all gone.

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jaidexl

· #9 · Dec 22, 2007

I'm sorry I can't help with the math, I did Levamisole math for three days before I came up with a solution. All I can say is the stuff is potent, so round down the dosage wherever possible, you can always increase if it's not enough. In my case I came to a 3.63% solution (granted the math was correct) and worms were dying within ten minutes. In the future, get the Levamisole Bolus, I know a person with the easiest instruction for using those, no heavy math or mixing solutions as with the powder and liquid injection type, they know exactly how many tablets per 10gl tank volume. Hopefully there won't be a wormy future for you though

Edit: I see you managed to kill them already :thumbsup:

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mistergreen

Discussion Starter · #10 · Dec 22, 2007

jaidexl said:
I'm sorry I can't help with the math, I did Levamisole math for three days before I came up with a solution. All I can say is the stuff is potent, so round down the dosage wherever possible, you can always increase if it's not enough. In my case I came to a 3.63% solution (granted the math was correct) and worms were dying within ten minutes. In the future, get the Levamisole Bolus, I know a person with the easiest instruction for using those, no heavy math or mixing solutions as with the powder and liquid injection type, they know exactly how many tablets per 10gl tank volume. Hopefully there won't be a wormy future for you though

Edit: I see you managed to kill them already :thumbsup:

Sounds like you overdosed... You just need 2-5ppm or 2-5mg/L in the tank. But overdosing is quite common.. Just make sure to do a massive water change after 24 hours.

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jaidexl

· #11 · Dec 22, 2007

That's very very likely. I had the help of one of Agrliab's veterinarians with the math, and he wasn't versed on dosing a water column. In the end, given the math and final solution was correct, which it probably wasn't, I was dosing 1.5mL of 3.63% per 3.6L

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