Huge fan leaves - Small braches

Ya, if you add more soil, it should give a little bit of nutes, but nowhere near enough to last you through flowering to finish.
Choose your bloom nutes and get them coming, but in the mean time, you could just use some all purpose ferts, maybe something like a 10-10-10.
Start with a low dose, and feed a couple times. I think you will see a difference pretty quickly.

as for the fungal growth it is/ was using the honey as a food source and is able to thrive in the high humidity environment. There are some fungicides at nurseries and hydro stores but that clone may be lost. It is not the same as nutes but some molasses in your water will provide some micro nutes and it will also feed the microorganisms hanging out in your soil who will in turn feed your plant.

Thanks guys... I'm more than a little paranoid about going to my local garden centre, never mind hydro stores. I'll probably be ordering online. In the meantime, I'll have a look in my local supermarket for plant food. I know it's time to get serious about nutrients if I want this plant to take off and hopefully produce some nice buds. As for the clone, I dont mind much if it makes it or not. To be honest, this grow is a bit half-arsed compared to what I'm reading around the board. I will be adding the recommended lighting and nutrients, as my budget allows.

DC