Just a note to add to what good advise Ed and others have mentioned, but not directed specifically at your posts.
When creating the title to your post - give a little description.
If you just type "help me" or "I have a question" no one knows immediatly what your Q is, and it's tough for everyone to read ALL POSTS.
If on the other hand you create a title called
"help-question about live rock" or "Need suggestions on protein skimmers" or "Help-ICK on YellowTang" AND post it in the correct forum, chances are that those that KNOW will READ, and will generally get more attention.
Otherwise - lots of members - lots of posts, and many will go unread or answered.