Ask A Pro: 866-581-7378 Mon-Fri 9am-5pm ET Contact Us
Fast Free Shipping On Your Entire Order*
DoMyOwn - Do It Yourself Pest Control
  • Use "Spacebar" or "Enter" to expand the My Account navigation menu.
  • Use Down or Tab key to select next menu item.
  • Use Up or Shift+Tab keys to select the previous item.
  • Use Enter/Space key to visit the menu item.
  • Use Esc key to leave the submenu.
  • Use Left/Right arrow keys to allow users to navigate within the navigation links.
  • Use Down arrow key to expand the submenu and up/down arrow keys to navigate within the submenu.
  • Use Enter/Space key to select the menu/submenu items.
  • Use Esc key to leave the submenu.

Tackle Your To-Do List - Up To 30% Off Spring Savings - SHOP NOW >>

Product Q&A

« See More Q&A's

John writes

Does Crystal Blue Black Out kill agar and grass?

Answer:

Crystal Blue Black Out does not kill anything.  It is used as a pond colorant only.

Answer last updated on: 09/26/2019

Was this answer helpful to you? Yes No

Crystal Blue Black Out

Crystal Blue Black Out

4 out of 5 stars

$57.69

Free Shipping*

Buy Now