We are Washington, D.C's premier location for all of your horticultural needs.
Located at 3744 10 St. NE, Washington, D.C. ; 20017
Call us at 202-248-2483.
Open 7 days a week Mon-Fri 11-7pm
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General Hydroponics® pH Control Kit contains 8 oz pH UP, 8 oz pH DOWN, 1...
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To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced...
The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper...
This Base solution is formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at...
3744 10th St NE, Washington DCCapital City Organics202-248-2483Get Directions
Capital City Hydronics is now closed.We want to thank all of our customers for their support and invite you to our main location.
11am-7pm Mon-Sat ;
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