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Use ISO 800 or 1600 !!! 125 is good only for direct Sun light or very strong reflectors. 125 made sense only in old film technology where the size of the grains on the film was proportional to the sensitivity. In digital technology, ISO should primarily be considered for amount of noise. While...

14" WOW !!! :) You don't need a trap you need this http://www.diveremporium.com/spearguns.html

In M mode, you need to control several variables at the same time (shutter speed, aperture and the sensor speed) and set them appropriately for each individual shot. In Tv or Av mode, you preset the sensor speed (ISO), then choose what is the most significant issue (depth of field vs movement)...

:) Now we know what we are talking about. First of all, if you insist on using autofocus, then change it from 9 points into a single point. Middle point is a natural choice but if your picture composition is such that middle point is not good enough for autofocus (smooth surface or a point that...

Excelent suggestion, count me in. Maybe we should refine the question/suggestion: Class or workshop? Basic or advanced?

just make sure you get the pepermint (Lysmata wurdemanni) and not camelback (Rhynchocienetes uritai) or rock shrimp (Lysmata californica) which are all very similar and often found mislabeled in stores.

Peppermint shrimps definitively. They definitively do the job with Aptasias (personal experience), they are very good general cleaners, and while some people caution against any shrimps in reef setups, I have never heard of anyone complaining about them from their personal bad experience. Just...

Home Depot and Lowes sell, in gardening section, plastic deer netting http://www.lowes.com/lowes/lkn?action=productDetail&productId=156309-000023132-10009&lpage=none This mesh openings are ~1/2" . If you want smaller (1/8-1/4") go to Walmart's sewing section and look for that mesh used in veils.

cardinals, banggai, flame and pajama. available in any petco for 15$. banggai might not be colorful, but is definitively attractive fish. madarin and clown gobies, grow to 3-4" but they still "look" small, specially compared to tangs. they do best in tanks with lots of live pods. if you have...

Did you check the Nikon web site if they have some educational material. That would probably be better for a start, since it will talk about practical settings and tips for that particular camera. Canon has something like this...

Please post what are your speed and aperture when getting those pictures. What type of camera do you use? While tripod is really a must when taking such photos, don't underestimate the vibrations that happen from mere pressing the button, specially with a flimsy tripod. Most of the blurs on...

You can find Kent Marine Kalkwasser in any decent aquatic pet store that stores marine products. Or you can order it online...

Good advices above. Just a couple of pointers from my experience. First of all I believe that 200$ target is very unrealistic for any kind of corals. While an experienced reefer can create and maintain it for a year under that price, the beginner will probably not. And it might be enough to...

Worse then that is that I DID know that and I used the Coralife Aqualight for 6 months without realizing that their design is FLAWED! (http://www.marinedepot.com/md_viewitem.asp?idproduct=ES53601) Only when I replaced the buld with the new Ushio bulb, I realized that the bulb is shielded only...

Definitively a RIPOFF, no question about it. Miniscule investment growth, and not a real investment for that since you can't realocate that money anywhere else. Once you draw against it, you insurance part of the "investment" losses a lot of its value. No real tax benefits since you pay income...

Judging by the size, it is not much of a bio-mass, so, with any decent cleanup crew it shouldn't be a problem, specially if you have refugium with macro algae and/or skimmer and sizeable tank. By the way, did Xenia show some initial growth/health or did it start dying from the very moment you...

I can't say what is wrong with your Xenia, but let me give you a small advice, based on my experience with similar situation. I had a nice Xenia for 6 months. It was growing nice from just 3-4" to the height of more then 6", and it has even started splitting into 4 stalks, when all of sudden...

Last time I was there, which was 4-5 months ago, they were quite pricey. However, since only half of the store was set, at the time, it is possible that that was because they have just started the business and haven't stabilized their inventory.

All the previous posts seem to assume that your tube is coming vertically down (from owerflow for example) and is fed by the agravity alone, in which case some added weight (a bit of extra length would be sufficient for that) or binding to some other hose will do the trick. If, on the other hand...

Buy PC fans. They are cheap, virtually noiseless, easy to maintain and set into whatever enclosure you want to build, will do the job you need them for (just removing hot air from canopy) and they run of 9-12V DC. You can wire them any way you like it to any DC converter. And if you are lucky...