That Fish Blog – Aquarium Advice and Information
Hi everyone, Cory here. I’ve blogged before on how the weather can effect fish availablilty , but weather conditions aren’t Mother Nature’s only tools. Sadly, the disaster unfolding in Haiti will effect the lives of hundreds of thousands of people long after the next few weeks as the world gathers to assist the injured and displaced denizens of that beautiful island nation. Our thoughtss and prayers are with the victims and their families.
As aquarists, you may likely feel some small ripples of the tragedy. You may see changes in prices and availability of Carribean invertebrates and fish. With a magnitude 7.0 earthquake hitting the capital city of Port-au-Prince, where a majority of the livestock is housed and shipped, the market may be in for some changes in the next few weeks. Haiti is an excellent source for Scarlet and Blue leg hermit crabs, Gorgonians, Ricordea, and countless other fish commonly seen in the aquarium trade. With restrictions on collection in Florida, there will no doubt be noticeable change in the coming weeks. There are collection stations through out the Caribbean such as Belize. The problem is shipping and the cost of collecting the organisms, the further away from the US, the more it is going to cost.
The bread and butter invertebrates such as Arrow Crabs, Banded Coral Shrimp, and Peppermint Shrimp will most likely be affected as well. During the summer and fall, hurricanes and tropical storms can lead to 1 or 2 weeks of no collection, which hits the aquarium trade very quickly. No one knows right now what the extent of the damage is in Haiti, but the toll is projected to be devastating. Until we know how much the main infrastructure has been disabled, we may be talking weeks to months of no collection. So keep an eye on the news and if you are interested in something from the Caribbean, you might want to get it now, in case the availability decreases as expected.
On the freshwater side, the frigid temps blanketing Florida may also cause some extended issues with tropical freshwater fish. The media has been covering the devastating effects of the freezing temperatures on the tropical fish farms based there. Millions of domestically raised fish, hundreds of species, that are shipped to retailers across the nation have perished during the cold snap. The toll of this event will be unknown for weeks, even as the temperatures rise again. Fish not killed by the plummeting water temperatures or devoured by predators as they lay paralyzed from the cold will have to recover from the shock and disease that may have set upon them in their weakened states. From guppies to cichlids, stocks have been impacted. Just a heads up, as you may see some empty tanks in the coming weeks until farmers can replenish stocks and recover from the poor circumstances.
You can read more about the fish farms here.
Photosynthetic inhabitants aren’t the only ones to consider when upgradign your lighting. Fish are also susceptible to being stressed out from a sudden increase in the light’s brightness. Just like when you acclimate a new tank inhabitant to your tank’s water chemistry, it’s important to acclimate your livestock to your new lights. It may be safest to introduce new fish with the lights off for the first few hours, or with only actinic or accent lighting fired. Results of not doing so can lead to fish becoming severely stressed. Fish may be skittish and might want to jump out or hide under rocks, anemones and soft corals might retract, and hard corals may lose polyp extension or possibly bleach out. All of this can be avoided by following the above methods for acclimatin to new lighting.
Dave here. I just got back from a trip to California to visit with the folks from Ecoxotic, a new aquarium lighting company that specializes in LED technology. Many thanks to Ecoxotic for the opportunity,not only was the trip informative, but it is much warmer in southern California than it is here in frosty Pennsylvania. Ecoxotic has just started shipping product this month, and we will have it here at TFP very soon, so I wanted to give a quick rundown of the new products that we will be carrying from this exciting new company. 
The story begins with a single coral larvae finding a small snail shell on which to attach and begin it’s life. From this point the coral can begin to lay down its structure, quickly overgrowing the shell. For one reason or another a Sipunculid Worm moves into the shell, only to become engulfed and trapped inside the coral. This symbiotic relationship allows for constant movement for the coral and safety for the worm. The coral will have a small hole on the bottom allowing for movement and the uptake of sediment by the worm, preferably a fine sand. The worm is a deposit feeder, taking up sand and consuming nutritious organics found in or on the sand. The coral itself is photosynthetic, but with the presence of tentacles during the day, I would suspect they are also planktonic feeders.