Noob wondering why

What is the difference in a 30/40g and a 30/40g breeder? Why are they called breeders? Google is the smartest person I know, but seems pretty dumb when it comes to this question.

 

They are longer/wider horizontally Vs. taller/skinnier vertically. i don't know why they are called breeders. For instance, why is the 29g long called a "long"? One would think it would be a 29g Tall or a 29g breeder.

 

Its called breeder in general cuz of more bottom surface for rocks and plants for egglaying, breeding freshwater fish don't occupy the open water in taller tanks. But also terrorial fish like breeders for more area.

 

Thanks to both of you. It makes sense. Now if Petco would have that $1/gallon sale I'd have me a new 40g breeder! ;D;D;D

 

To bad ur so far away I have 2 that will be fd soon.

 

http://ovas.ca/index.php?page=53

Standard Rectangular Tanks

Volume in Gallons Dimensions in Inches (L x W x H)
2.5 Mini Tank 12 x 6 x 8
5.5 16 x 8 x 10
10 20 x 10 x 12
15 24 x 12 x 12
15 High 20 x 10 x 18
16 High 20 x 10 x 19
20 High 24 x 12 x 16
20 Long 30 x 12 x 12
20 Extra High 20 x 10 x 24
25 24 x 12 x 20
29 30 x 12 x 18
30 36 x 12 x 16
30 Extra High 24 x 12 x 24
30 Breeder 36 x 18 x 12
33 Long 48 x 13 x 12
37 30 x 12 x 22
37 (Oceanic) 24.5 x 18.5 x 21
37 Column 20 x 18 x 24
38 36 x 12 x 20
40 Breeder 36 x 18 x 16
40 Long 48 x 13 x 16
45 36 x 12 x 24
50 36 x 18 x 18
50 (Oceanic) 30.5 x 18.5 x 21
55 48 x 13 x 20
58 36 x 18 x 21
65 36 x 18 x 24
70 36 x 18 x 25
75 48 x 18 x 21
90 48 x 18 x 24
105 48 x 18 x 29
110 (Oceanic) 60 x 18 x 23
110 Extra High 48 x 18 x 30
120 High 48 x 24 x 24
120 Long 60 x 18 x 26
125 72 x 18 x 22
150 72 x 18 x 28
150 Extra High 48 x 24 x 30
180 72 x 24 x 24
210 72 x 24 x 29
220 72 x 24 x 30
265 84 x 24 x 30

Bowfront Tanks
Volume in Gallons Dimensions in Inches(L x W x H)
26 Bowfront 24 x 15 x 21
28 Bowfront 24 x 16 x 18
36 Bowfront 30 x 15 x 21
46 Bowfront 36 x 15 x 20
72 Bowfront 48 x 18 x 22
90 Bowfront 48 x 18 x 29
155 Bowfront 72 x 24 x 24
175 Bowfront 72 x 24 x 29

Corner Tanks
Volume in Gallons Dimensions in Inches (L x W x H)
54 Corner 38 x 27 x 22
70 Corner 48 x 22 x 25
92 Corner 48 x 34 x 24

Hexagon Tanks
Volume in Gallons Dimensions in Inches (L x W x H)
10 Hexagon 14 x 12 x 18
14 Hexagon 14 x 14 x 20
20 Hexagon 18 x 16 x 20
23 Flatback Hexagon 24 x 12 x 14
27 Hexagon 18 x 18 x 24
33 Flatback Hexagon 36 x 12 x 16
35 Hexagon 23 x 20 x 24
44 Pentagon 22 x 22 x 24
52 Flatback Hexagon 48 x 13 x 20
60 Hexagon 27 x 24 x 28