Product: HydroOrganics HOGNCO16OZ 16-Ounce Hydro Organics goGNATS Liquid Concentrate Plant Supplement
Brand: HydroOrganics
Used as a plant and area spray, added to nutrient reservoirs or used as a soil drench
Can be applied as an area spray or added to fertilizers and applied during feeding
For hydroponics, it is recommended to add directly to reservoirs on a regular basis
Available for indoor/outdoor plants
Control of soil-fungus gnats, mites, aphids, moths and other garden and hydroponic pests

Search query: gnat killer for indoor plants
Relevance: Substitute