I'm currently fighting a battle with green hair algae in my 72g reef. The main source of the problem was the tank was getting too much sunlight. I've since solved that problem by blacking out the back and side of the tank so that no sunlight can get in. This seemed to have helped some, but I still notice the hair algae growing fast! I've also been doing 30g water changes every week and have recruited the help of a dozen snails and a sea hare. They seem to help the problem some..

This octopus is something you'd expect from a sci-fi movie. In this video you'll see something swimming up to a clump of seaweed and then out of nowhere, the octopus comes out of stealth and swims away.

My 72g had a break-out of hair algae.. everyday I would see more and more. After trying to manually remove the hair algae for a few days, I decided to take a different approach and get the algae where it counts - the excess nutrients. The 72g has a 29g refugium, but apparently that wasn't enough to keep the hair algae at bay. What I decided to do was use a guppy breeder box I had laying around and threw some chaetomorpha algae from the refugium in there. I let it float around the main tank for about a week and low and behold, the hair algae started to disappear!

New life is taking shape off the coast of Florida with artificial reefs using cement balls with holes in them called Reef Balls. The unique thing about these reef balls is each ball has the remains of a deceased person that wants to "sleep with the fishes". The crematory remains of these people that request to be with the reefs are mixed into the cement of these reef balls. These artificial reefs are the burial grounds for about 600 people. Eternal Reefs is the company that creates these memorial reef balls.

For anyone that doesn't want to spend a lot of money to start a reef aquarium, or simply don't have the room for a big tank, then a nano-reef is the perfect solution. Nano reefs are much cheaper to start and will fit on any sturdy desk/countertop. The JBJ Nano Cube is the most used aquarium for any nano reefer. It has just about everything built in for the hobbyist that doesn't want to spend too much time building DIY projects for a nano reef.

These photos were published by National Geographics on Nov. 10, 2008 - they are the findings of the Marine Census.  The Marine Census is a 10 year project by marine biologist from over 80 countries that will attempt to catalog and understand ocean life (and hoping to document 95% of Earth's ocean by 2010). Here are a few of their findings, these new deep-sea marine species are the freaky version of their shallow water cousins :

This is one of the most complicated sumps I've ever seen! This sump has a built in top-off system, cooling section and a chamber to do a water change while the pump is running. The creator of this video doesn't have a link to all the specs, but if you're savvy enough, you could probably figure out everything from the video. The only dimensions for this sump is 115 x 54 x 60 cm / 37 (45.27" x 21.25" x 23.62" / 98gal).

Here's a video that shows you how to do water change in a marine aquarium. This is from the same guy that shows you how to build a DIY sump.

While the live rocks were curing in the 72g, I had quite an outbreak of Red Bubble Algae pop up all over the rocks. Before putting the LR back into the tank, I tried to scrape as much red bubble algae off the LR as possible. After about a week the red bubble algae started to pop up again on the live rocks (see image below). I bought a couple of emerald crabs to eat the algae, but they only seem to like every other type of algae except the red bubble algae.

Building the Refugium - Now that the tank was ready, we started to convert the 29g into a refugium using plexiglass bought from Home Depot.

The first step in building this 29g refugium is to cut the plexiglass to make the refugium walls. A simple two wall refugium design was used.. This is what we came up with: