A few concerns I have..

[Macropodus]

... I'm worried that putting them in the v-18 tubs will change them. Right now all of my snakes are puppy dogs, but they kind of see me coming right now in their tubs and have a way of sensing me I guess. But I feel like that may change once I start sliding them out of the darkness so to speak since the rack is only front sliding and closed off on three sides. I just don't want to scare them half to death and make them start becoming defensive. My animals are definitely a project that I have in the works, but first and foremost they are my pets and I love holding them and building a relationship with them...

I very much relate to "first and foremost they are my pets and I love holding them and building a relationship with them" and this is one of a few reasons why I don't ever see myself breeding on a serious level. Regardless of whether snakes are kept in racks or tanks, sheer quantity alone dictates less quality time with each individual. Throw my 9 to 5 problem, familial obligations, the rigors of daily life, etc, into the mix and clearly having "puppy dogs" are more likely with < 1 dozen snakes, pour moi.

Please update your post 1 year from today and let us know if behavioral changes have been noted. Thank you.