Hi Stuart! I have some of the same seeds that I am growing (Arabicum black pearl), as well as Bob. This looks to be a popular seed! I can't help answer your question about the Nitrozyme. I have never used it. Can you explain what it is for?

Tracy

http://www.growthtechnology.com/product/nitrozyme-concentrate/

http://www.agriorganics.com/soldagry.php

Looks like an additive or fertilizer. I don't think the intended use is for soaking seeds. They don't really tell you what is on it either just states growth enhancer.

I don't soak my adenium seeds in anything not even water. I used to but discovered that it isn't necessary. I have good germination with just spritzing them with water.

Tracy

On another website they use it for soaking seeds for better germination. And 1-2 weeks water plants with it before taking cuttings for better rootings.

http://www.onestopgrowshop.co.uk/propagation/propagation-nutrients-and-cloning-products/growth-technology-nitrozyme-100-mls.html

Let us know how your trials go. It is something I've ever tested so I cannot say if it would work. Perhaps it can boost the performance in your seedlings. If I were going to use this product, it would be in conjunction with fertilizer, as you first mentioned.

Tracy