A field manual for aquascaping

Anyone can put a rock in a tank. Few place it on purpose.

Masterscaper is where you learn the technique behind the layouts you admire — hardscape placement, planting order, trim schedules, and the style traditions that shape them.

Start with technique Browse styles
0.382 0.618 tank width Oyaishimain stone Fukuishisecondary stone Soeishitertiary stone 0.382 0.618 tank width Oyaishi Fukuishi Soeishi
OyaishiThe main stone: largest, set off-center on the golden section, and it sets the angle the others answer.
FukuishiThe secondary stone: smaller, placed on the longer side so the three tops make an unequal triangle.
SoeishiThe tertiary stone: smallest, tucked in beside the oyaishi to carry the line down to the substrate.

Where to start depends on where you are.

Beginner

Your first layout

Hardscape first, substrate slope, and the three mistakes that sink most first tanks.

Intermediate

Style & composition

Iwagumi, Dutch, jungle, biotope — what defines each, and how to commit to one.

Ongoing

Maintenance & trim

The unglamorous work that separates a layout that peaks once from one that matures.

Master

Building your eye

Reading proportion, negative space, and depth the way competition scapers do.

Want to build it yourself?

Everything here is written to get your hands in the tank — style breakdowns, step-by-step technique, and a glossary for when a term stops you cold.

Start the technique guides

Want it designed for you — or hands-on instruction?

Hakkai designs and installs custom aquascapes out of San Diego, and runs in-person workshops if you'd rather learn by scaping alongside a designer.

Visit Hakkai

Common questions before you start

Do I need CO2 to aquascape?

No. Low-tech tanks without pressurized CO2 can look excellent if you stick to forgiving, low-light plants — anubias, java fern, crypts, and most mosses. CO2 mainly opens up demanding carpet plants and denser stem work; it's a Stage 2 upgrade, not a requirement to start. See the CO2 & lighting basics.

What's the easiest aquascape style for a first tank?

Iwagumi and basic jungle-style layouts are the most forgiving to start with, mainly because they use fewer plant species. Dutch style looks simple but actually demands the most trimming discipline of any style, so it's better attempted once you've kept a tank stable for a few months. See the full style breakdown.

How often should I trim an aquascape?

Stem plants generally need trimming every 1–2 weeks, cut back to just above the previous trim line before they reach the surface and flop. Carpet plants get thinned as needed rather than on a fixed schedule. See the full trim & maintenance schedule.

What's the difference between Iwagumi and Dutch style?

Iwagumi is built around stone — an odd number of rocks and a single carpet plant, with the hardscape as the entire visual event. Dutch has no hardscape at all; it's built entirely from rows of contrasting plants called "streets." They're close to opposites in what they ask of you.

Why does my tank keep getting algae?

Almost always because light has outpaced CO2 or nutrient supply, not because there's "too much light" on its own. Check your CO2 stability and dosing before cutting your photoperiod. See CO2 & lighting basics.