The file size for photos being attached to messages has been increased from 100KB to 250KB. Please be aware this can cause you to reach your upload quota much faster so if you are one to upload alot of photos this way please be sure to keep an eye on your attachment control panel that is accessable via your profile.
To view how much of your attachment quota is currently being used visit any post that you have made recently, or find your username at the bottom of the forum index and click on it. From there you will see a bar graph showing your used disk space and the amount left. Below this is a link to see your attached photos and to remove those you no longer want.
Remember an easy way to get more disk space for uploading images is to donate. If you wish to donate you may do so by going to http://www.aquariumadvice.com/donate.php