Skapelab

40-Gallon Low-Tech Iwagumi Aquascape (Beginner)

Iwagumi aquascape example for a 40-gallon breeder tank

A 40-gallon breeder Iwagumi aquascape planned for a low-tech setup and a beginner aquarist. It pairs 6 plant species with a 4-group stocking list, built around Seiryu Stone. Everything below is sized to the tank and matched to the beginner skill level.

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Hardscape & layout

Built around Seiryu Stone. Place the largest piece off-centre on the golden ratio, angled slightly back, with smaller supporting pieces stepping away from it.

Substrate

Aqua soil or capped organic base, capped with fine natural gravel/sand cap, built to about 2.5–3.5" deep. A nutrient base keeps low-tech plants fed; cap with fine gravel. Slope higher at the back.

Plant list & placement

PlantPlacementQuantityNeedsBuy
Dwarf Hairgrass Mini
Eleocharis sp. 'Mini'
Carpet9 potsLight: medium · CO₂: recommendedBuy at Buce Plant
Cryptocoryne parva
Cryptocoryne parva
Foreground9 potsLight: low · CO₂: not requiredBuy at Buce Plant
Dwarf Hairgrass (tall)
Eleocharis acicularis
Carpet9 potsLight: medium · CO₂: beneficialBuy at Buce Plant
Rotala rotundifolia (green)
Rotala rotundifolia
Background3 bunchesLight: medium · CO₂: recommendedBuy at Buce Plant
Anubias nana 'Petite'
Anubias barteri var. nana 'Petite'
Epiphyte3 portionsLight: low · CO₂: not requiredBuy at Buce Plant
Bucephalandra 'Mini Coin'
Bucephalandra sp. 'Mini Coin'
Epiphyte3 portionsLight: low · CO₂: not requiredBuy at Buce Plant

Stocking list

SpeciesSuggested countTypeBuy
Murray River Rainbowfish
Melanotaenia fluviatilis
12PeacefulBuy at Flip Aquatics
Betta (Siamese Fighting Fish)
Betta splendens
1Semi_aggressiveBuy at Flip Aquatics
Corumba Apisto
Apistogramma commbrae
8Semi-aggressiveBuy at Flip Aquatics
Amano Shrimp
Caridina multidentata
9InvertebrateBuy at Flip Aquatics

Equipment

CategoryRecommendationPriceBuy
FiltrationAquaclear 50 Power Filter (HOB)~$45–62Buy at Green Leaf Aquariums
LightingFluval Aquasky 2.0 36–48"~$78–108Buy at Green Leaf Aquariums
HeatingEheim Jager 100W~$27–38Buy at Chewy
SubstrateFluval Stratum 17.6lb~$48–65Buy at Buce Plant
FertilizerSeachem Flourish Comprehensive 250ml~$8–14Buy at Buce Plant
TestkitAPI Freshwater Master Test Kit~$28–42Buy at Aquarium Co-Op
Water treatmentSeachem Prime 500ml~$12–20Buy at Aquarium Co-Op
BacteriaSeachem Stability 250ml~$8–14Buy at Aquarium Co-Op

Care schedule

DailyFeed lightly; a quick glance for anything unusual.
Weekly25–30% water change, light fertilizer dose, wipe the glass, quick trim.
MonthlyRinse filter media in old tank water; test KH, GH, and pH; deep-trim and replant tops.
As neededTop off evaporation with dechlorinated water; spot-clean algae.
Start this build in the Skapelab studio →

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