What is the Bubble Box Double System and how does it work?
The Bubble Box Double System is a dual-root-zone hydroponic setup combining deep water culture (DWC) with a timed top-feed drip ring. Upper roots stay moist in clay pebbles, while lower roots thrive in an oxygen-rich nutrient solution—supporting rapid, healthy plant growth.
How many plants can it support and what are its dimensions?
It’s designed for 2 plants and measures 110cm × 52cm × 39cm with a 65L reservoir. You can run just one plant by covering the unused site to block light and prevent algae.
What comes included with the Bubble Box Double System?
The system includes the reservoir, trays, water pump, tubing, and top-feed drip rings. You’ll need to provide clay pebbles (30L recommended), an air pump, and air stones separately.
Do I need to rinse the clay pebbles before use?
Yes—rinsing removes dust that can clog lines and affect pH. Clay pebbles are the preferred medium and should be clean before starting your grow.
How does the top feed system work and when should I use it?
The top feed keeps seedlings moist until roots reach the reservoir. Run it on a timer early on, then reduce or stop once roots are well established. Regular cleaning prevents clogs and uneven watering.
What kind of nutrients should I use in the Bubble Box?
Use clean, mineral-based hydroponic nutrients made for DWC. Organic options are possible but increase the risk of clogs and require more maintenance. Cal-Mag may be needed if your water is soft or symptoms appear.
How do I manage pH, EC, and water changes?
Check pH and EC daily, especially early on. Ideal pH ranges from mid-5s to low-6s. Change the reservoir weekly or if pH swings or smells occur. Topping up is okay short-term but full changes are essential.
What’s the ideal water temperature and oxygen setup?
Keep water cool and stable—warm water reduces oxygen and promotes root issues. Use a strong air pump with at least one air stone per plant, placed evenly. A check valve protects your pump from backflow.
How do I avoid algae and root rot?
Block light from the reservoir, maintain strong aeration, and keep temps down. Signs of trouble include bad smells, slimy roots, and wilting. You can run beneficial bacteria or go sterile—just don’t mix both approaches.
Can I start seeds directly and how should I transplant?
Starting in cubes or plugs is easier. Transplant when roots show. Early on, set water higher so bubbles splash roots, then lower the level to maintain an air gap and promote strong root growth.
Is the Bubble Box Double System beginner-friendly?
Yes—with attention. It’s a fast-growth system that rewards daily checks. New growers should monitor water temp, pH, and oxygen closely for best results.
What types of plants work best in the Bubble Box?
Fast-growing, oxygen-loving plants thrive in this system. Choose strains suited to vigorous hydroponic growth and ensure your space can handle their size.
What are common mistakes and how can I avoid them?
Letting water get too warm and underpowering the air pump are top errors. Also, neglecting light leaks and skipping maintenance can lead to issues. DWC is high-reward, but it needs consistency.
Does the system make noise or fit in small grow tents?
Air pumps can hum, but a foam pad reduces noise. At 110cm long, it fits wider tents. Ensure enough headroom—DWC plants grow big fast, so vertical space matters.
Should I keep spare parts on hand?
Absolutely. Have a backup water pump, extra air stones, and airline tubing. If a pump fails early in growth, young plants can suffer quickly without top feed or oxygenation.
