What I have learned over the years: anemone's: NEVER buy ANY anemone's if your tank is not fully cycled (6 mos. min) and make sure your lighting is adequate (very important). Never buy "fresh" anemone's- that is, new arrivals at the LFS. Wait at least a week- discuss this with the LFS. Always look at coloration- know what you are buying before you buy. IF you buy, inspect it's foot, and it's tissue- carefully, (BEFORE YOU TAKE IT HOME)- damage can be bad. IF an anemone is a host- buy what is hosting it too- this helps with acclimation and provides a "security blanket" for your new friends. Water quality is very important- it needs not be perfect-, but rather- STABLE, (given good quality from the onset) water stability is the key, perhaps, test the tank from which your critter came from and compare your tanks water to this. This means your tank is no less then 6 mos. old. The more established the better. SLOW DRIP ACCLIMATION- IMHO a must for critters you buy locally, however, if you buy online be sure to use an additive to the acclimation water to prevent ammonia build up and wild ph swings. There are numerous additives available- use what is preferable for the critters you are acclimating- READ the directions of the prospective additive you are going to use before you add it to your water. The key here is to prevent ammonia build up. Anemones are tough critters- they can stay partially out of the water for quite some time, however, this doesnt mean the one your adding should be out of the water- the less stress the better. If you look at all the reefs down under- these guys have a tough life, hence the reason nature allows them to move, which leads to the next suggestion, make sure you have room for these guys, some can grow quite large and they will move arround until they find that sweet spot in the aqua space you provide them. Very important- let anemone's move arround, dont touch them if at all possible, you can damage their foot and or their tissue in doing so. Due to Anemone's being a "mobile" critter, you may have to "remodel" your tank at some point, keep this in mind. Not all clown fish will accept an anemone- so expect this. Here is an excellecnt source of information: http://www.wetwebmedia.com/CnidIndex2.htm Feel free to add in your experiences.