Creating a Waterfall Illusion Underwater

I was curious as to how the tank above, which took World Ranking 7 in the ADA aquascaping contest this year, created the waterfall illusion. I had seen similar effects created by rising bubbles, but this seems to end before reaching the surface, meaning it is created using a different method (or there was a good deal of Photoshopping involved). However, an anonymous comment tipped me off to a website that explains exactly how it was created, and it is quite creative. To start off, the illusion is created with falling sand, not rising bubbles. However, bubbles still play an important role. See the diagram below:

This is a cross section of the "waterfall." A tube and airstone blows bubbles up through a space behind the wall, and as a result, pulls water and tiny grains of sand (blue dots) from a sloped reservoir (sloped so that gravity pulls the sand down and into the bubble stream) up the narrow space. Once the grains reach a second opening, they forced out the second opening with the water current and fall back down the front of the wall back into the reservoir. Here's a picture of what this looks like before any plants are added:

As you can see, very fine sand must be used for this to work. Additionally, where the sand falls is affected greatly by other currents in the tank, and it will inevitably fall outside of the reservoir. This means this effect is not the most practical for everyday use, as using it with a filter would probably blow the falling sand everywhere else in your tank. I'm sure much tweaking and adjusting is necessary to find the best type of sand suited for this application, and what size space behind the wall works best. How the sand is ejected from the top of the bubble column is also probably a problem area that requires a lot of attention and adjustment. It's hard to tell from the diagram, but the bubble column space most likely extends above the water line. This forces the water pulled up by the bubbles out the sand-ejection opening. Otherwise, the sand would continue to follow the current of bubbles and water up and out the top of the column (and you'd have a messy volcano effect instead of a waterfall!). The final effect, if done correctly, looks absolutely stunning in pictures.

ADA 2007 Aquascaping Contest: Top 10 Rankings

Finally got some time to throw these together with a little commentary; these are the top 10 aquascapes from the 2007 Aqua Design Amano Aquascaping Contest. The contest, held yearly and open to anyone, is the most significant award in the hobby and garners international recognition. The entries are judged by Takashi Amano himself and other renowned judges. There are some fairly original and interesting ideas in some of these and they are great inspiration!

World Ranking 1

This is a classic Nature Aquarium style tank and the contrast between the heavily planted left side and the open right side create a tranquil border scene complete with sandy foreground. The use of rock and driftwood help to add structure to the aquascape.

World Ranking 2

A lovely hillside scene with rocky outcroppings and schools of tiny colorful fish create an idyllic scene in this iwagumi inspired layout.

World Ranking 3

The carefully placed petrified wood in the foreground of this beautiful aquascape combined with the lush, overflowing green vegetation create the atmosphere of overgrown ruins deep in a jungle. The nearly terraced midground creates a beautiful "staircase" effect up to the dip in the plants where a school of fish hover like a flock of tropical birds. This is my personal favorite of the top 10.

World Ranking 4

Diagonal layers of ferns on driftwood create a stunning effect coupled with the contrast of the orange-tipped plant on the right side of the tank. The grassy, pastoral foreground complete with a school of fish completes the scene.

World Ranking 5

This aquascape looks like a lush mountain, with the two background groups of plants overlapping, creating a valley-like feeling. I love the contrast in colors and textures in this one.

World Ranking 6

An "island" aquascape, the driftwood adds a lot of interest and I especially like the hint of red peeking over the midground plants. The white sand foreground must be a pain to keep clean though!

World Ranking 7

This is a particularly interesting aquascape. I'm not quite sure how the designer created the illusion of a waterfall, but it could have been done with sand or air bubbles. Either way, the visual interest of this aquascape is amazing. It's such a beautiful tropical scene, with lush plants and mosses surrounding a clearing filled with grasses. The slope of the entire aquascape also adds such depth to the scene that it makes it seem much bigger than it actually is.

World Ranking 8

The most striking feature of this aquascape is the vertical rock formations. They are perfectly placed and dotted with all sorts of plants, creating an overgrown, natural look.

World Ranking 9

The black background of this aquascape helps to bring out the brilliant green colors of the plants, and the two red plants, on either side of the "valley" provide contrast.

World Ranking 10

Filipe Oliveira's entry, this is such a unique and wonderful aquascape. The moss "tree" and the pastoral setting beneath are fundamentally relaxing and pleasing to look at. It's also the only entry in the top 10 rankings from outside Asia.

Top 27 2007 ADA Contest Aquariums

Here they are finally! The top 27 aquariums from the 2007 ADA Aquascaping contest are listed along with comments from the judges over at Practical Fishkeeping's blog. The picture above is the winner of the contest, but some of the others are extremely interesting as well. Go have a look!

ADA Awards Ceremony and Party 2007

On September 16th, the Tokyo was home to the equivalent of the Oscars for the aquascaping community. The awards for the International Aquatic Plants Layout Contest 2007 winners were awarded and slides of the winning aquascapes were displayed. Although there aren't any clear pictures of the aquascapes yet, there are photos of the slide show and event over at Creative Aquascape Union. Check them out and I'll post the winning aquascapes when better photos pop up!

ADA International Aquatic Plants Layout Contest 2007 Closes Today!

Just another quick note of ADA news, the 2007 International Aquatic Plants Layout Contest closes today! It's a chance to win one of several prizes: There will be one Grand prize of JPY1,000,000 (a little over $8,000!), one Gold prize of JPY300,000 (about $2,500), two Silver prizes of JPY100,000 (about $800), three Bronze prizes of JPY50,000 (about $400), twenty Honor prizes of JPY10,000 (about $80), and 100 Winning works which will receive a certificate. We should know the results in a few months and I'm really interested to see what new ideas and techniques spring up. In case you missed them, here are last year's Top 10 aquascapes.

ADA Aquascaping Contest 2007 is Open

For any of you who feel like putting your aquascaping skills to the test and competing with the world's best, the 2007 Aqua Design Amano (ADA) International Aquatic Plants Layout Contest is now open for applications. More information and application forms can be found on the ADA website. New for this year, you can now apply online as well. There will be one Grand prize of JPY1,000,000 (a little over $8,000!), one Gold prize of JPY300,000 (about $2,500), two Silver prizes of JPY100,000 (about $800), three Bronze prizes of JPY50,000 (about $400), twenty Honor prizes of JPY10,000 (about $80), and 100 Winning works which will receive a certificate. Entries must be received before May 31, 2007. Good luck to anyone who enters, and tell us about it, I may even feature your tank!

2006 Aqua Design Amano (ADA) Aquascaping Contest Winners (1-10)

Aqua Design Amano (ADA), brainchild of legendary aquascaper Takashi Amano, holds an aquascaping contest each year. This contest is probably the largest event in the planted aquarium community each year and sets the standard for aquarium design. The results of the 2006 contest were released recently, and I figured I'd post 1st-10th place here for inspiration...and to drool over! Enjoy!

1st Place

2nd Place

3rd Place

4th Place

5th Place

6th Place

7th Place

8th Place

9th Place

10th Place