OK....considering the advice given on this forum and others (Im on Vivariumforums, Dendroboard and Find Me A Reptile) i have done the following...gutted the tank and rebuilt
I was dreading this for about a week but it was a quick job as its only a small tank
I put about 1 - 1.5" of gravel in the bottom...not pea gravel but the larger stuff...
I then dumped a layer of cocofibre over this, about an inch and set my plants, and then planted them in deeper, making sure the coco-fibre is properly packed down...this will set when it gets damp too...
i also got rid of the slate pieces as I fel ti had too much but found a massive lump of wood in the garden, washed it thoroughly and burried it in plants and cocofibre
tank now:
Gravel...
Plants...
Side View...
Whole Tank...
More Plants...
All done
James