How To Make A Hydroponic Stealth Grow Box

How To Make A Hydroponic Stealth Grow Box
December 02, 2019

Disclosing personal choice of flora is not something every home grower wants to do. Some choose to go guerilla growing or opt for basement gardening to stay discreet. Overseeing plants in a hidden outdoor spot can be challenging. Even indoors, not many have concealed spaces. The solution is to use a stealth grow box.

These cleverly designed boxes are meant to be a fully functional habitat for cannabis. At the same time, its outward appearance blends in with the room such as looking like an ordinary cabinet or chest. It can be quite costly too. Hence some people have taken to improvising and building one at home using readily available materials.

Reasons To Go DIY

A sense of fulfillment washes over every grower who harvests buds after putting in weeks of time and effort in caring for the plants. Getting creative and personally building a stealth grow box elevates that gratification even more. Plus, this undertaking comes with a long list of benefits too.

  • Customize the size to fit any available space in all parts of the house.
  • Flexibility to choose whichever equipment will be used in the grow space.
  • Cost can be cheap, or it can be expensive, depending on the financial capability and willingness to spend.
  • Apart from building one from scratch, old materials could be repurposed, or buy new ones.
  • Perfect for small-scale grow.
Cannabis On A Hydroponics Setup
Hydroponics Setup

Start Building Hydroponics Stealth Grow Boxes

Making a stealth grow box with a hydroponic setup is reasonably straightforward. It takes only a few hours to collect all the materials needed and finish building.

Grow Cabinet

An inconspicuous grow cabinet has plenty of advantages. It allows growers to curve one within budget, needs, and, to some degree, style. It can also complement the room and the rest of the furniture.

Moreover, the discreet grow space is customizable. Growers can put as many components as preferred or add new ones in the future. It is also the best type of stealth grow box for cultivators rearing Sativa strains.

Materials Needed:

  • 4” In-line Ducting Fan
  • Air Filter
  • Cabinet (new, old, homemade)
  • Fan
  • Hydroponic Grow System
  • Black Tape
  • Mylar (or any reflective material that is not aluminum)
  • Rope Ratchet
  • T5 Grow Light


  1. Cover the interior of the cabinet with mylar.
  2. Suspend the T5 grow light on the inside-top of the cabinet using rope ratchets.
  3. Create a 12” hole near the bottom rear of the cabinet for cool air entry.
  4. Cover the hole with an air filter to protect the plants from dust and pests.
  5. Create a 4” exhaust hole on top. Make a larger one for bigger cabinets or if using more/hotter lights.
  6. Put the 4” ducting fan in the exhaust hole. It must be pointing up so it may pull the hot air out while also drawing the cool air in through the bottom rear hole.
  7. Place the hydroponic grow system inside.

Hydroponic Space Bucket

A classic space bucket is easy to make and very practical. Typically, a grower would only need to spend $100 to $200 to set one up. It has two main parts: the bottom container houses the plant while the top holds the lights and ventilation. Once the space bucket is all set up, just put the hydroponic tub with the seed or plant.

Due to space restrictions, Indica and autoflower seeds are best to use. Additionally, to keep the plant’s height under control, one must employ low-stress training. Topping and pruning may also be necessary.

Materials Needed:

  • Four 5-Gallon or 20-Liter Buckets
  • Four 23-Watt CFL Bulbs
  • 4-Socket Bulb Adapter or 4 E27 Bulb Sockets
  • 2 PC Fans
  • 12-Volt 2A Power Supply
  • Power Strip
  • 24-Hour Timer
  • Mylar (or any reflective material that is not aluminum)
  • Hydroponic Tub


Step 1. Make the main or bottom body

  • Set the drainage. Pick one container and make some holes at the bottom using a Dremel or a hot piece of metal or screwdriver. The vents work as drainage, making sure there will be no water buildup.
  • Secure proper lighting. Line the inside of the bucket with mylar. The reflective material sticks with any glue. Although this is optional, the technique optimizes the illumination.

Step 2. Make provision for proper airflow

  • Install PC fans. Cut holes, either 8×8 or 12×12 depending on the size of the PC fans, on opposite sides of the bottom bucket. To do this, use a hot knife. One fan is for air intake, so it should be pointing in. The other will serve as exhaust and should be pointing out.
  • Power up the fans. Once the PC fans are in position, connect them to the 12-volt power supply.

Step 3. Install the light source

  • The easy way. Make a hole on one of the lids available for the 4-socket bulb adapter. Screw in the four 23-watt CFL bulbs.
  • For custom wiring. Make four holes on the top bucket for the E27 bulb sockets. Connect them in parallel and make sure to solder then tape the wires. For safety purposes, glue a cover for the lid and cord with a container.

Step 4. Set the power strip

  • Glue it. Stick the power strip on one side of the container. This is where the grower will connect the lights plug, the timer, and the 12-volt power supply for the fans.

Step 5. Stack up

  • Add more height. Get the two or three other buckets and cut the upper part off. Stack them on top of the bottom bucket to make the body longer.

Step 6. Set the light and connect everything

  • Make it lightproof. Cover the container with black tape to make it impermeable to light.
  • Power up. Connect the lights plug, the timer, and the 12-volt power supply to the power strip. Once done, connect the piece to a power outlet.

Hydroponic PC Grow Box

A PC grow box is perhaps one of the most ingenious stealth boxes one can make at home. Due to its size, though, it can only accommodate micro growing. The strains most suitable for case cultivation are either Indica or autoflowering.

Materials Needed:

  • PC Case
  • Two PC Fans
  • CFL Bulbs
  • Bulb Socket Adapter (compatible with a standard household outlet)
  • Tiny Hydroponic System
  • Mylar (or any reflective material that is not aluminum)
  • Power Strip
  • Super Glue
  • Plastic Ties
  • Permanent Marker (Black)
  • Metal Cutters


  1. Obtain a large PC case or tower preferably with one or two fans already set in place.
  2. Unscrew and open the PC case and get rid of everything that is inside except for the fans and their wirings.
  3. Make sure the fans are in the right spot. One should be on top and the other on the bottom. If the pre-installed fans are not in those locations, then they must be relocated.
  4. Measure the diameter of the fans and outline the case using the black marker. Then, employ the pair of metal cutters and clip out the holes accordingly.
  5. Install the fans and make sure one is blowing in while the other is blowing out. Also, secure the fan wires in the interior walls of the case with plastic ties or super glue.
  6. Cover the entire interior surface with the mylar, but leave the fans exposed. Stick the reflective material with glue to keep it secure.
  7. Step 7. Also, glue the power strip onto the interior top of the case. Make sure no wires or cables are hanging around.
  8. Plug the adapters to the power strip and connect the CFL bulbs. A tower often has at least two CFL bulbs.
  9. Place the hydroponic system inside the case.
  10. Plug the fans and everything else that needs electricity to the power strip. As always, make sure all wires are securely affixed on the case walls using super glue or plastic ties.
  11. Close the case but do so loosely for easy access. There is no need to screw everything back in or seal it tightly.

Because Why Not?

Small-scale indoor hydroponic cultivators should highly consider making their own stealth grow box. Apart from its discreetness, the easy to maintain option also saves space and money.

Moreover, growers can choose a style that complements the preferred location. Placing an inconspicuous cabinet in the living room or even the bedroom is fine. Meanwhile, space buckets befit a garage or the basement. On the other hand, college students or studio apartment dwellers can have a PC grow box on top of desks.

Cannabis Water System

With this low-profile containers, cultivators can enjoy rearing marijuana without announcing it to every house guest.