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Goldfish Feeding

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I'm conducting an experiment entitled the "Effect of volume on Carassius auratus growth". However, I'm uncertain of how often and how much to feed the gold fish. My experimental setup consists of a ten gallon tub (30 X 20 inches, about 6 inches deep) with five individual containers within, approximately filling a volume of 2 litters each (Mesh basket like). Two fish are in each container while twelve fish are left in the larger volume outside. Yes I have filtration.
First, is this an adequate setup? Secondly, what would be the best feeding technique? My professor suggested letting to fish be exposed to an excess amount of food for three hours /twice a day. (I'm using floating pellets so far.) However, even if the fish have an excess amount of food, they would still eat all of it if given enough time. I say this b/c gold fish have no stomach, and it's possible for them to be over feed, right?

Also, what are some scientific articles I could refer to on the subject, and where can I find them.

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https://brainmass.com/biology/animal-biology/goldfish-feeding-experiment-27138

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Let me start off by saying that I work with zebrafish. In their general upkeep they are feed 2-3 times a day as much as they will eat in 2-5 minutes. The excess food is always removed to prevent nitrogen build up. For zebrafish care the most used resource is the zebrafish book (http://www.grs.nig.ac.jp:6070/zf_info/zfbook/zfbk.html).

Ok now for what I found on goldfish maintenance. A good place to start is the net (I always use yahoo as it is a simple search ...

Solution Summary

Information on how to care for and feed goldfish along with a web link to a book on goldfish.

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See Also This Related BrainMass Solution

Test of Hypothesis using ANOVA: Mean Size of Goldfish

Please provide some insight about this experiment I'm doing concerning goldfish growth. Basically, I've gathered all my data, and now I'm trying to figure out a way to analyze it. The experiment was basically trying to see if water volume has a direct effect on goldfish growth. I used different volumes and allowed the fish to stay in these volumes for 51 days (following a strict protocol of feeding, cleaning, maintaining ect.). During that time comparative photos were taking of the different volume groups and surprising what me and my mentor noticed that all the groups pretty much stayed the same size. The smallest fish in the large volume was the same size as the smallest fish in the small volume; and the same thing with the largest fish. At the end of the 51 days I measured all the fish in the groups, which was their length in centimeters. My aim is to show that all the volume groups really showed no variation between one another. Currently, I'm using EXCEL and trying to show this using a Bell shaped Curve. However, is this the right approach?

I have attached my working numbers.
Measurements are in the A column (A2:A40). You will see that I do have a graph, but I'm uncertain if it can even be call a Bell shaped curve. Is there any other statistical approaches I could use? Please help me!!!!

Basically I want to know what can I do with these numbers.

4.6 Group 1
8.1
5.5
7.6
6.6
5.2
4.9
5.5
5.6
6.2 Group 2
5.6
4.9
6
5.7
6.1 Group 3
5.2
6.8
4.3
7.6 Group 4
6
5.3
6.8
6.4
7.1
5.6
6.4
5.7
5.4
5.2
8.3 Group 5
7.6
5.9
6.5
6
5.2
5
5.4
4.2
3.9.

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