No Sick Fish Samples
- Thread starter StevenPro
- Start date
dizzy":34tjs1ld said:
Colorni, A. 1987 "Biology of Cryptocaryon irritans and strategies for its control." Aquaculture 67: 236-237.
Colorni, A. 1985 "Aspects of the biology of Cryptocaryon irritans and hyposalinity as a control measure in cultured gilt-head sea bream, Sparus aurata Diseases of Aquatic Organisms 1: 19-22.
If you don't have access to either one, you could read about it in Noga's Fish Disease: Diagnosis and Treatment.
spawner":11psjvre said:
Thanks for the offer! I know my previous test was limited and a statistical analysis wasnot possible, but I only have 12 tanks. If I dropped down to two treatments along with the positive and negative controls, that would give me three tanks per group.
By the way, does increasing the number of Xenia fragments per tank help? I am guessing no.
Steven, I am not one to say whether or not hypo works or is proven, but to reference studies done in the mid 80s does not hold any water with me.
I am not trying to start a debate, or an arguement, I am just stating that data from 20 years ago should not be looked at as definitive proof.
Lets think what the mid 80's brought us.
Miami Vice
Cheers
Chevrolet Chevettes
Duran Duran
Wham
VCRs
Can you hear me now?????????
I am not trying to start a debate, or an arguement, I am just stating that data from 20 years ago should not be looked at as definitive proof.
Lets think what the mid 80's brought us.
Miami Vice
Cheers
Chevrolet Chevettes
Duran Duran
Wham
VCRs
Can you hear me now?????????
StevenPro":206jz5jb said:
Well you have to drop treatments out or increase tank numbers, only 10 bucks for a 10 gallon tank
If you set up a nested ANOVA then you could look at more xenia fragments per tank. This would allow you to use two tanks per treatment, with at least 3 frags per tank (use 5). We have to look at your question; the question is what is the medication doing to the corals, given that your tanks are exactly the same, which they never are, but they are going to be close. The only thing that would cause varitation would be your Xenia.
Much of stats can be made in to smoke and mirrors, the absolute best way to test the data would be to have 5 smaller tanks with one xenia frag per tank, however we are dealing with the real world and not the world of stats. If you only have so many tanks you have two choices, reduce the treatments or nest the data. Nesting is vaild when you are looking at survival. Some might argue that its not the best way but its a vaild test.
They killer would be if you have a difference between tanks in the same treatment, if your tanks had differneces then you would be SOL. I am betting that you are going to get good results with nested data.
andy
danieldm
But what I am saying is that when these tests were done in the mid 80's so what did that controlled environment contain. And are those conditions easily duplicated today. And is the strain that was eradicated by hypo in the mid 80s the same exact strain as commonly found today.
Way to many variables.
Can anyone anyone think of a sickness, disease, or operation that was the norm in the mid 80s which is still the norm today?
Do you think they are currently using text books at Med school from the 80s??
SaveTheReefs
But what I am saying is that when these tests were done in the mid 80's so what did that controlled environment contain. And are those conditions easily duplicated today. And is the strain that was eradicated by hypo in the mid 80s the same exact strain as commonly found today.
Way to many variables.
Can anyone anyone think of a sickness, disease, or operation that was the norm in the mid 80s which is still the norm today?
Do you think they are currently using text books at Med school from the 80s??
SaveTheReefs
I agree with savetherreefs we need more current data to back up the claim that it works. Scientific proof should mean something besides being a good marketing soundbite. All I know is that when I tried it was ineffective and I had to switch to copper to save my fish.
Mitch
Mitch
spawner":p4n3fvob said:StevenPro":p4n3fvob said:
Well you have to drop treatments out or increase tank numbers, only 10 bucks for a 10 gallon tank
If you set up a nested ANOVA then you could look at more xenia fragments per tank. This would allow you to use two tanks per treatment, with at least 3 frags per tank (use 5). We have to look at your question; the question is what is the medication doing to the corals, given that your tanks are exactly the same, which they never are, but they are going to be close. The only thing that would cause varitation would be your Xenia.
Much of stats can be made in to smoke and mirrors, the absolute best way to test the data would be to have 5 smaller tanks with one xenia frag per tank, however we are dealing with the real world and not the world of stats. If you only have so many tanks you have two choices, reduce the treatments or nest the data. Nesting is vaild when you are looking at survival. Some might argue that its not the best way but its a vaild test.
They killer would be if you have a difference between tanks in the same treatment, if your tanks had differneces then you would be SOL. I am betting that you are going to get good results with nested data.
andy
I could fit 5 fragments per tank if that permits me to do a statistical analysis. Thanks for the assistance!
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