sure thing,
one option is to upload your images to a website and then link to them (that way, as all men love to hear, size doesn't matter)
alternatively, you can edit the original post and add more attachments...cripes, i just tried that and it is apparently no longer permited...but yah, if you want to avoid the resizing hastle you can open a free acount somewhere like
www.freewebs.com and upload your pictures there and then link to them here
like the tank...sounds to be about 60 us gallons...just for a rundown, what all have ya got in there?