Is Crystal Plex safe to use with fish?

This product is safe for livestock, recreation, potable water and not harmful to most fish when used according to label directions. There are a few exceptions, Crystal Plex is not meant for small deco ponds and is toxic to Koi, Goldfish and Trout.

How often should I use Crystal Plex?

Crystal Plex algae control should be used when algae is present. Wait 14 days between applications and only treat a 1/2 or 1/3 of the pond at a time to recover oxygen levels.

How do I apply this product?

Apply by mixing and spraying algae.

How much product do I use?

13 oz. of Crystal Plex mixed with a couple gallons of water will treat 1,000 square feet.

When is the best time to treat my pond algae?

Pond algae should be treated when algae is actively growing and water temperatures are above 60F.

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💧 Clear waters, zero algae, endless envy.

GENEROUS COVERAGE - One gallon treats a full acre pond, 1 to 3 feet deep—efficiency meets scale.
VIBRANT BLUE TINT - Light blue color lets you see where you’ve treated—precision meets confidence.
LONG LASTING EFFECT - Keeps your pond pristine for up to 30 days—less maintenance, more enjoyment.
SAFE USE GUIDELINES - Formulated for ponds without Koi, Goldfish, or Trout—protect your prized aquatic life.
POWERFUL ALGAE ELIMINATOR - Harness the proven strength of liquid copper sulfate for crystal-clear waters.

Crystal Blue Plex Lake and Pond Algae Control uses a liquid copper sulfate formula to effectively eliminate algae in ponds up to 1 acre in size and 1-3 feet deep. Its active ingredient remains effective for up to 30 days, providing long-lasting clarity. The product is designed for use in ponds without Koi, Goldfish, or Trout, ensuring safe application for compatible aquatic environments.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

KD 45.05

Duties & taxes incl.

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TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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4 days ago

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Product Dimensions	15.24 x 15.24 x 30.48 cm; 4.08 kg
Item model number	444
Item Form	Copper,Liquid
Color	Light Blue
Size	1 gallon
Volume	3785.41 Milliliters
Number of Items	1
Quantity	1
batteries required	No
Batteries Included	No
Item Weight	4.08 Kilograms

Crystal BluePlex Lake and Pond Algae Control

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