heres a good blurb for reading... Hybridizing”,Cross-breeding and Mixing Dart Frogs by Philsuma » Mon Mar 28, 2011 4:22 pm “Hybridizing”,Cross-breeding and Mixing Dart Frogs for personal pleasure or participation in the Dart Frog Hobby Community. We need to start this discussion by realizing that it is not solely a matter of educating new hobbyists, when it comes to this issue. “Educating” implies that hobbyists are doing something wrong and need to be corrected, when in reality, they are just doing something that goes against someone else’s beliefs. This is large hobby and there is enough passion, interest and energy for all, provided we do not adversely affect things for future hobbyists down the road. We all need to provide good, truthful reasons for why we personally choose not to mix or breed different species or morphs. We must be civil in our attempts to persuade others with opposing viewpoints and realize that not everyone is going to agree and/or change their mind right away or possibly ever. The majority of the Dart Frog Hobby Community believes that mixing is bad for the hobby because it can lead to hybrid or cross morph frogs being produced and transferred to many other people and places. The reason we feel this is bad is because most Dart Frogs have a long life span and could enter and stay in the hobby - not labeled properly, for a long time. If mislabeled and questionable Dart Frogs circulate in the hobby, they can destroy attempts at trying to manage pure blood lines. The Hobby community realizes that its breeding efforts are unlikely be able to be used for species re-population in the event of extinction, but there are still valid reasons why we want to be able to maintain an accurate representation of what a certain species of dart frog looks and acts like, in nature. The more mixing, hybridization or even the threat or mention of it occurs, the more it will drive many hobbyists to seek to acquire wild caught stock. This definitely hurts conservation efforts. Many older and experienced hobbyists may even “shut their doors” and refuse to help or provide frogs to those seeking to create hybrids or mixed enclosures. Even though it has been shown that success with mixed species enclosures is achievable, newcomers to the hobby should still start out with a single species, in order to gain the experience that is essential to basic Dart Frog care before trying to attempt a mixed species enclosure. Simply put, when a second or third separate species is added to an enclosure, the chance of something going wrong is accelerated 2 fold. That is the main reason that we direct all new hobbyists to a single species enclosure and not a mixed one. If, however, you do decide to mix species or morphs, please take into consideration not creating hybrids and to use frogs that cannot breed with one another, like all males. Be prepared to cull any eggs that are produced. Research all the necessary information regarding mixed species enclosures well before attempting same (most information is found online in Forums) in order to make sure you have the best possible setup to be successful, and for the health of your frogs. Here are some answers to a few questions that inevitably get brought up anytime there is a "mixing" or "Hybrid" discussion: "I will cull every egg"....You won't find every egg and even froglets I never knew I had, pop up all the time in my vivs. "Then I will cull those froglets or keep them, but I won't breed them"....In time, you will be overrun with froglets and won't be able to keep every one. Killing small froglets is not an easy thing to do for most people, as well. "I will only transfer hybrid or crossed offspring to those hobbyists who specifically want then and they all will be informed as to what they are"....It is inevitable once someone gets bored/goes university/has children/moves house/passes away/needs money,then these frogs will have to go somewhere else. The easiest way to do this is to fail to disclose or even lie about what your frogs are (if hybrid). This is the core of the issue - the recirculation of unknown lineage animals at best, or at worst - the direct falsification or missrepresentation of certain dart frogs. And finally,as Corny and trite as this may sound : The Frogs can’t speak to us. They are truly at our mercy when it comes to housing and caring for them. We all need to consider what is best for them, and not just what we selfishly want and desire.