Wow! nice tank ireland! My new betta would love the cave!
I may try something like this first, if I do go with live plants, it would allow me to try to do what I am thinking in my head only on a teeny tiny scale with no co2, and I can practice with fertalizer. :)
And yw bettafish15 for the sites :) hope they can help you a bit with what you are looking to do! And have fun shopping!! :D
I think I am going to pick up the little pack of tera cotta pots from the dollar store and make my fish a couple caves like I have seen in other people's tanks here, the nice plastic ones in the pet store are sharp enough to cut me on the inside, and the rocks they have will change the water. :(