I Built a Walmart Hydroponic System… Here’s the 4-Week Update

Quick Overview

After four weeks, the $49 Walmart hydroponic system performed adequately, but the creator identified three main issues: insufficient oxygen to the root zone leading to root rot, lack of plant support causing stems to droop (especially basil), and grow lights being too short, causing phototropism as plants stretched toward them.

Key Points: The $49 hydroponic system showed decent growth after four weeks, but required modifications to address issues. The initial problem was a lack of oxygen at the root zone because the roots were fully submerged in water, which the creator corrected by draining some water to expose the roots to air. The included net cup supports were inadequate; basil plants slumped over, requiring additional support, which the creator suggests could be improved by using net cups instead of the provided foam cubes. The included dual LED grow lights were too short, causing plants like kale and basil to exhibit phototropism (reaching for light), resulting in weaker stems. The nutrient/pH stability was excellent, requiring only a shake every few days and showing no significant change in pH over the four-week period. The creator plans to experiment with adjusting the light height on other systems to see if it yields better results.

Context: The video documents a four-week progress report on a self-built hydroponic system assembled using components sourced primarily from Walmart, costing $49. The creator, who focuses on aquaponics, hydroponics, and agriculture content, assesses the system's performance based on plant health (kale and basil) and operational challenges encountered during the initial testing phase.

Detailed Analysis

The creator provides a four-week update on the budget $49 hydroponic system. He identifies three primary issues encountered. First, there was a lack of oxygen at the root zone because the roots were initially fully submerged in the nutrient solution, which he corrected by draining some water to expose the roots to air for a week, resulting in healthier root growth. Second, the system suffered from a lack of adequate plant support; the basil plants, in particular, sagged because the provided net cup cubes offered insufficient support, suggesting that using actual net cups would be superior. Third, the included dual LED grow lights were too short. Because the lights were positioned too close to the plants, they caused the kale to grow upward toward the light source (phototropism), leading to weakened stems, while the basil leaned toward the light source. Conversely, the system showed excellent nutrient/pH stability, requiring only minor mixing every few days as the pH remained constant. The creator concludes by stating he will experiment with positioning the lights higher on other systems to mitigate the phototropism issue.