We have also tried to address these common problems by tailoring the talks at our monthly meetings to help educate folks about these problems. For example, this month;s topic is on nuisance algaes. Past topics have included water chemistry, filtration, aiptasia, flat worms, etc.
The point about not knowing what to search for is well taken. Hopefully, when the library is completed we can just send someone to the appropriate area of the library. The problem with the quicj answers that most people get here is exactly that. They are quick answers and we rarely are doing a service to the person with shooting off the hip with a quick answer.
I think its better to provide the resources to help educate that person. For example, you will see someone ask what to do about low calcium or alkalinity. The answer they get is usually something like "Dose B-Ionic." Now, did that person really learn anything, except they need to make a trip to the LFS? Not really. There are rarely simple questions or simple answers in this hobby. They need to know why their calcium or alkalinity is low and the basic chemistry to go along with it. They do not need to become a chemist to understand the basics of aquarium chemistry. However, the basics are essential.
Going back to the question above, did the well intentioned person that answered the question give any information on how to dose the product, or where in the system, under what conditions, or the need for testing in conjunction with using supplements? Blindly dumping in additives is rarely a good idea and can cause bigger problems then was originally the case. So, did he really do a service to the person with the question?
You may have noticed that I have started answering such questions by providing links to resource sites. I have been flamed in the past for my wordy replies to questions here. The reason for that is what I described above. Rather then retelling the same tales over and over again I have taken the approach that the best thing to do is provide the resources for the person to do their own research and as a result become a better informed hobbyist. If the person is too lazy to do that after I have given the info to them, then I don't have much hope for them anyway. This hobby does require some dedication and willingness to put in the work to succeed. If that is not there, then I normally recommend they move on to gold fish. At least their failures will be less expensive.
Gary
125 SPS, 75 gal. LPS/softie reef, 9 gal. Nano