What does a hydroponic reservoir do?
A hydroponic reservoir is one of the most important components of any complete hydroponic system. The reservoir is responsible for holding the hydroponic nutrient solution, and houses a few other essential hydroponic parts. The submersible water pump sits inside the tank, and pumps the hydroponic nutrient solution up into the grow tray or flood table, where the plants reside.
How do you oxygenate water?
It is important to ensure the water in your nutrient solution is properly aerated before feeding plants. Without oxygen in the water, plants will not be able to absorb nutrients. In some severe cases, the plant roots can drown. This is especially common in DWC systems, where roots are completely submerged in water, and in Ebb and flow systems where the root zone is flooded regularly.
The best way to oxygenate your hydroponic reservoir system is with an air pump and air stone. The pump sits outside the tank, and connects to the stone inside. When turned on, the stone delivers oxygen in the form of tiny air bubbles.
What does a complete hydroponic reservoir kit include?
The lid of a reservoir tank is responsible for keeping contaminants out, and for preventing light from entering. When light enters the reservoir, it can become a breeding ground for algae and pests.
What size reservoir do I need?
At Hydrobuilder, we recommend sizing your reservoir larger than you anticipate needing. A larger reservoir tank means you will need to change the water less, and ensures your plants will be fed if you are away from them for an extended period.
Smaller hydroponic water tanks are susceptible for fluctuations in pH, temperature, and nutrients. This can lead to the plant becoming stressed, which slows growth.
Common sizes of hydroponic water reservoirs include:
- 20 gallon hydroponic reservoirs
- 50 gallon hydroponic reservoirs
- 100 gallon hydroponic reservoirs
- 200+ gallon hydroponic reservoirs
Maintaining your hydroponic reservoir
One of the important considerations is the temperature of the nutrient solution in your reservoir. If temperatures rise too high plants will be unable to hold onto dissolved oxygen, and will stop absorbing nutrients, which leads to a halt in growth. If temperatures drop too low, plants will think the season is ending, and stop growing and go to sleep.
To prevent any halt in plant growth, keep the temperature in your hydroponic reservoir system between 65-75 degrees Fahrenheit.
If you live in a climate with extremely high or extremely low temperatures, you will need a hydroponic water chiller and heater respectively.
You will also need to change the solution in your reservoir tank at least once every two weeks during vegging, and every week during flowering. This ensures the plant is constantly provided clean water, as the water conditions can degrade over time, especially with nutrients in play.
Regularly draining and filling the reservoir will prevent any algae from growing in the system.
If you need any help sizing your hydroponic reservoir system, give our experienced growers a call today at 888-815-9763 and let us help you. If you want to learn more about hydroponics, visit our learning center!