Breeding bettas isn't just something you can do on a whim, at least if you want to do it successfully. Based on your post, it sounds like you don't really have much of an idea of the costs and time involved in raising betta fry. You are probably looking at a couple hundred dollars in initial outlay, as well as around 4-6 months of time spent doing daily maintenance.

To answer your question, I would only ever breed a CT to a CT. You will end up with messy fins if you cross a VT onto a CT. Unfortunately, I don't know much on colour genetics in bettas so that is going to have to be answered by someone else.

 

Well of course parent's color determines fry color. Here are the basics - ask away if you have questions.
Color Genetics Guide

 

I was thinking of breeding my male with a light blue female. My male is dark purple with red fins, and is camera shy so I will post a picture of him when I can get a good picture. Would this color combination be advisable?

 

Color mixing is personal preference. Most color mix is advisable, depending on what you are trying to create.
Eg. the color in your avatar is a mixture of all base colors - irid, red, black. It is more of a traditional color. If you like these color pattern, you can breed any two dark colors.

Let's say you prefer solid color patterns. You have to separate each color layer OR do not mix colors - breed irid to irid, red to red, and black to black.

So, what are you trying to achieve?

 

I am trying to get some cool looking babies, I think the solid colors are kind of plain, which is why I thought about a completely different colored female.

 

In that case you can breed him to any color. If you want a rainbow of colors, try using complex genetic colors like lavender, yellow, platinum, dragons . . . . etc. Breeding to a base color will give you similar patterns.

 

Where I live, there is only 2 pet shops. One is family owned, and they do not take care of thier animals very well (dirty cages/tanks, under fed, small cages/tanks, and over all not taken care of), so I refuse to buy anything from them. The other pet shop is Petco, and they do not have much of a selection of colors, from what I have seen there, they only have solid colors, shades of blue and red seem to be all they have, I have seen very few (maybe 2) white Betta's.

 

Cambodians are usually common. Crossing to this will also give you a wide range of multi colored bettas. But if that isn't available, just start with what is available. . . . as long as you can rehome your potential fry.

 

Thats what I am looking into now, to see if I can find homes for the young first, before I attempt breeding.

 

I got homes for the babies when they are ready for new homes! Time to start working on the set up and start picking out a female.