I just went to my local hardware store and couldn't find any eggcrate so I got these things instead for $4.00 each

and some expanding foam for $11:

And I got some mulch which I think will be okay because its organic, and has a picture of a frog on the package, haha it was $6:

I got 15kg of river pebbles for $10:

and some mesh for the drainage, which im to lazy to take a picture of because its to big, lol (it was $5 a metre, and I got 2.5 metres)
and I did the little waterfall which I just sprayed a clump of expanding foam and carved it into a shape I like, and poked a hole through it to stick a pipe in, and after that I covered it in pond sealer, $26 :


and then in paint $4 each:



I can't do anymore on the actuall tank untill I get some glass cut for a divider, and get it siliconed in. and also sorry the pictures are really bad, I had to use my really really bad camera because my mum lost the good one, so hopefully ill find it soon, lol.
any tips/critisism welcome thanks