I have just finished stocking my tank and looking at it it seems right at the limit. So, I am considering swapping my 6 x 2.5-3" Congo Tetra for some smaller dithers that dont go above 2" but not small enough that they will get eaten! Also, I am looking for something of a different colour as the theme seems to generally be oranges, and I was thinking of something bright, like shades of bright red, blue or yellow. I want these fish to swim around the top area of the tank. It would be even better if I could stick to fish that are found in SA/CA. My stock list is in my signature - please could I get your ideas? Thanks.