Spider Farmer 4-Pack Gravity-Fed Silent Self-Watering System Kits for Indoor Grow Tents & Greenhouses

The Spider Farmer 4-Pack Gravity-Fed Self-Watering System is designed to keep your plants perfectly hydrated with almost zero effort. Using a 13-gallon gravity-fed reservoir and wick-based moisture control, this system delivers consistent, silent watering to each pot—no electricity, pumps, or daily checks required. It’s ideal for growers using 4×4 or 5×5 ft grow tents, as well as indoor gardens and greenhouses.

This all-in-one kit is perfect for busy growers, frequent travelers, or anyone who wants reliable, low-maintenance plant care while still achieving strong, healthy growth.

Effortless, Automatic Watering

• Gravity-fed design continuously feeds water from the 13-gallon reservoir to each pot base.

• Once filled, the system can keep plants watered for up to 2–3 weeks, supplying up to 4L of water per plant per week.

• No power, timers, or pumps needed—just fill, set, and let your plants drink as they need.

Precise Moisture Control

• Wick lines allow plants to absorb only the water they require, preventing overwatering and underwatering.

• Encourages deep, healthy root systems and stable growth in all stages (best once roots are well developed).

Adjustable for Different Pot Sizes

• Each fabric pot base includes three wick line positions, so you can easily adapt to:

  • 1–2 gallon grow bags

  • 3 gallon grow bags

  • 5–7 gallon grow bags

• Includes five 5-gallon grow bags, making it easy to start right away.

Silent, Clean, and Tent-Ready

• Completely silent operation—no pump noise, perfect for indoor spaces.

• Each base has a 15.6" diameter, optimized for 4×4 and 5×5 ft grow tents (recommended tent sizes: 120×120 cm / 150×150 cm).

• Great for both soil and coco-based systems where consistent moisture is key.

Complete All-in-One Kit

Everything you need is included:

• 4 × Self-watering bases

• 1 × 13-gallon folding water reservoir

• 5 × 5-gallon grow bags

• Wick lines

• Shut-off valve box

• Water tubes

• Setup accessories

Pro Tips for Best Results

• Lay the bases, valve box, and tubes flat and keep the reservoir filled.

• Clean the basins every two weeks to prevent root clogging.

• Use once plants have well-developed roots—seedlings with shallow roots may not reach the moist zone effectively.

• Customize moisture by changing the number of wicks: more wicks = more water.