Colour Enhances Food!

[madgap]

So... Paul Talbot is famed for making these claims. I'll be keeping an eye out fo him.

 

[Tolak]

That's a sales site. The author of those dvds is Paul Talbot, a little google action came up with this; http/www.majesticaquariums.com.au/html/home.htm

Think I'll shoot him a little e-mail, see exactly what foods this concerns, and what fish as well.

 

[australia]

That's a sales site. The author of those dvds is Paul Talbot, a little google action came up with this; http/www.majesticaquariums.com.au/html/home.htm

Think I'll shoot him a little e-mail, see exactly what foods this concerns, and what fish as well.

cool mate get back to us asap!!!! B) B) B)

 

[australia]

That's a sales site. The author of those dvds is Paul Talbot, a little google action came up with this; http/www.majesticaquariums.com.au/html/home.htm

Think I'll shoot him a little e-mail, see exactly what foods this concerns, and what fish as well.

cool mate get back to us asap!!!! B) B) B)

 

[madgap]

Quite the wordsmith. Lets hope it sheds some light.

 

[Tolak]

I'm interested in seeing any research behind this claim. I could say I fed nothing but color flake for flake food to a group of 10 angels, and ended up with 3/4 males. This is just one instance, with a small number of fish, with no control group, which doesn't make it scientific in any way.

I examine every spawn for the best looking fish, or any that may have charactaristics that I would want to work with. These don't get sold with the rest of the fish, they get grown larger, and at times end up being breeders. Over the years I have yet to see any imbalance in the male/female ratio, and I feed flake with natural color enhancers.

Hormonally treated food may be a different story.

 

[grimmy]

http/freshaquarium.about.com/od/toppicks...ds/tp/color.htm it say nothing about hormones

 

[Bignose]

okay everyone ok, lol, here is were i got the infomation: Your Cichlid Aquarium Guide, by Paul Talbot

website: source of infomation!

This doesn't actually tell us what the information is. I'm sorry, but I'm not going to buy a DVD just to evaluate its content. If it presenting what it thinks are truthful facts, it should be able to back up those claims with evidence. Again, I am looking for the specific ingredient or ingredients that cause sex change, and the mechanism by which sex change occurs.

australia, you said you did some "investigat[ion] on Colour enhanced products [...] when i heard about it" can you please cite what other investigations you did? You also have the original DVD, what sources did it cite?

 

[Bignose]

I'm interested in seeing any research behind this claim. I could say I fed nothing but color flake for flake food to a group of 10 angels, and ended up with 3/4 males. This is just one instance, with a small number of fish, with no control group, which doesn't make it scientific in any way.

Just to back this up with some numbers, which shows the point Tolak is trying to make here. If you have a tank of 10 fish, what is the probability that 7 or them are male? 11.7% or 8 of the male? 4.4% Or the probability that there are at least 7 males? 17.2%

Sure, those percentages are small, if you had to put money down on it, you would certainly bet against 7 or more males, but 17.2% occurs rather commonly. If you set up 6 tanks with 10 fish in each, on average, one of those tanks would have 7 or more males (on average another would have 7 or more females, too). 17.2% is greater than 1 in 6 chance that you will have more than 7 males in a tank. It is 34.4%, or greater than a one in three chance that you will set up a tank with 7 or more of all the same sex.

This is all simple probability that shows that once in a while, you will get a tank that a significant majority of one sex over the other. That happens.

The crux of the evidence that would show that sex change does occur would be to show that his sex ratios are highly unlikely, that is, beyond the normal expectations of chance. This is what I personally would really like to see.

Finally, all other influences have to be eliminated, too. I know that fish spawns can be very sensitive to pH (I'll try to look for a source of this latter tonight). But, I know that certain fish can have the sex of their spawn shifted quite a lot depending on the pH of the water they are in. Has this author eliminated that as a variable? Has he tried waters of all different pH?

Many, many questions, and so far, very few answers.

 

[Tolak]

Well, I've waited two weeks for this gentleman to get back to me, so far nothing.

 

[Tolak]

Well, Mr. Talbot did get back to me today, and here is his reply;


Thank you for email John.
I am referring to hormone based foods commonly available in the Asian
communities, not the safe foods you are referring to.

Did you enjoy the rest of the DVD?

We have American distribution and they are easily available in your
area.
The importer of the DVD's is Zanusa.
906 McClain Rd.

Suite 3004

Bentonville, AR 72712

T: 479-271-7333 ext. 202

Toll Free: 866-506-7700

F: 479-271-7323

E: Cgrinder@zanusa.com

w: www.zanusa.com

Paul Talbot.


From the sound of it this refers to Asian breeders & exporters more than anything. There is a large oriental community here in Chicago, and I'm going out today to pick up a pool table with a buddy of mine who is a breeder & a bit more familiar with that area, as well as Asian imports. I'll ask him a few questions concerning this.

Bottom line is unless you are intentionally seeking out hormonally inhanced foods, most any commercially sold color enhancing food is not going to change the sex of your fish, per Mr. Talbot.