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More costly, but in the end more efficient since less food is lost outside of the nets. And you still have a lot of water pollution that eventually makes it out to the sea. It seems much like the effects of the Green Revolution on land; sure we will solve hunger, but most likely at the expense...

Random question: After learning to dive I am definitely more aware of my ears and equalization when I am out of the water. After finishing today's dive around six hours ago, I can still feel myself equalizing a little bit. What do you think might cause this? No pain or anything. Just wondering...

I would say if the OP was going to continue on to divemaster, it is a damn good example of stuff that will come up in the next course. It sounds like it was a little rough. I would have maybe thown in a debriefing if I were that demanding of my students during a course. Miscommunication, maybe?

(Disclosure: Just for the sake of discussion. I, too, prefer just some shorts and a rash guard) In sub-tropical/tropical environments, you can definately get away with the minimal protection necessary. However, depending on your dive location and conditions, I would also recommend getting used...

Opinions from my limited travels: 1)Roatan/Utila seemed like a place with a nice amount of traffic. 2)I dove for a few days in Playa del Coco, Costa Rica. Worth looking into. 3) Bocas del Toro off of Panama was very laid back and had a nice atmoshpere. The dive shops there seemed pretty...

Another thing you will learn in future courses are the search patterns. If you do manage to get off course, you can just run a quick search pattern to try to cover each possible direction in a controlled manner. This works well when combined with some natural navigation. Pay attention to the...

Feeling tired is ok. Diving is a lot of exercise while your are preparing (moving tanks around, setting up gear, etc) as well as the physical activity in the water. Pain is bad. That should be checked out immediately. Sometimes it can just be that your tired or hurt a muscle. Get DAN insurance...

My top three: Number one for me is definately getting enough exercise outside of diving. Besides the whole mess of health benefits, your body is prepared for the demanding environment of diving and will be able to better face any additional challenge thrown at it. This by far will help the...

Equipment is a key factor. In the beginning, I had a lot of trouble improving my trim (and staying there) until I switched to back inflation and rubber fins, the latter definately being a bigger factor. Every once and a while I throw on rental equipment because someone wants to try my setup and...

Dive logs are nice for memories. If you have computer, it will remember all the "important" numbers, but it won't remind you of what you saw or how were the conditions that day. I would avoid going for the DM just because you have reached the requisite number of dives. It's a nice thing to...

Compass and Kick Cycles! It is also easy to get disoriented when you have too much visibility, so always bring a compass even if you do not think you will need it!

Depends on the gas your using. If you are using only air, there is a possibility you could get narced, forget what you are doing and never stop decending. Taking a bit of time to go down is prudent. Tech divers might tell you a different story. As far as I understand, once you switch to...

Also, I have found it is much easier to deploy at 10m before ascending to the safety stop rather than waiting until 3-6 meters. Managing your buoyancy is much easier, making the execution of all the good advice listed above that much easier, and the DSMB tends to reach the surface with a greater...

If you are seriously considering the business side, I might suggest to go for the Divemaster. It's easily obtainable, you have to keep a complete set of gear (read: "Honey, but I am a Divemaster so I need X"), and you can start to make some side money for guiding people around. Figure out if...

Short answer: Mind over matter Long Answer: Ran into a similiar problem when facing the underwater equipment exchange for the DM training. When I got stressed during the exercise, I started to breathe harder. The extra air in my lungs created additional buoyancy and stressed me out more...

Never dived after consuming alcohol the same day. Once very new into the scuba world I stayed up a little late drinking before a volunteer dive to clean the buoy lines at the marine park. Woke up a little hungover and decided to go. Hungover and sea swell did not mix well. Never have had more...

From what I can see on product information on the internet you should probably just need to do a weight check and be mindful that you are switching from a jacket to back inflate BCD. Also, just a friendly reminder, if you are using new equipment make sure to change one piece at a time and make...

Same as the rest: Always a small backup flashlight to look into cracks, crevices during the day or for emergencies. Add an additional primary light for a night dive. Don't do caves or wrecks so two will be all I need. A

Dfx has done a nice job describing the tables answer to your question. I will handle the dive computer answer. The instrument on your wrist (or HP hose) does an excellent job of doing all those wonderful calculations for you (as long as it is properly serviced). You need to know the tables to...

Just got mine a few weeks ago. From what I have seen, the main difference is the air bladder is made of a much better quality material. The old one looked a little weak, but the new version looks spectacular. I had previously wanted the Balance but due to the air cell upgrade I went with the...