why do my pictures always look like this? my camera is pretty good but when i post the pictures turn out all blocky like this one. but on my computer before i post when the picture is larger the picture looks flawless.

I see some reflection but other than that, it is a good pic.. the fish in focus and that is good.. Your camra wil however focus also on still places in the tank.. like the tubing and the heater behind U.. So it is best to wait until the fish clears these to take a pic.. Cleaning the tank glass first does keep off the water spots. just use tank water and a paper towel to avoid lint..

nice rainbow tj

tJ..post a clear side shot

you should post a side profile photo so then we can see the colors better.