Copper Sulfate Fine Crystals - 50 Lbs.

Old Bridge Chemicals, Inc.


Copper Sulfate Crystals Fine Grade

  • A versatile farm chemical:
  • Pest control - snails and slugs
  • Pond cleaner - algae, mosquito larvae
  • Natural fungicide mildew
  • Antiseptic - household germs
  • Organic Bordeaux mix - blight, apple scab, leaf curl, etc.);
  • Remove old tree stumps (bore a hole and insert
  • Kill roots clogging septic tank pipes - flush down the toilet.
  • Wood and canvas preservative (prevents dry rot),

...or simply grow lovely blue crystals.

Usage: For pipeline systems (toilets, etc.) - 1 cup down drains every 2 weeks or 2 cups per month.

AK, OK

Customer Reviews

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Based on 62 reviews Average Rating 4.77 stars out of 5
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  • c
    christopher dehr C. D. christopher d.
    10-06-2025

    no support

    I sent an email saying only half of my order was delivered and I still haven't received the other half. I sent the email a week or more ago and still haven't had any response.

  • R
    Ric Van Lieu R. V. L. Ric V. L.
    08-06-2025

    Thanks for getting it here so quickly

    Copper Sulfate Fine Crystals - 50 Lbs.

  • R
    Ron C Cobb R. C. C. Ron C. C.
    26-05-2025

    Copper sulfate

    I haven't used it yet,just got it a few days ago. It should do what it's supposed to do. Thanks

  • L
    Linda Stolla L. S. Linda S.
    18-05-2025

    Ponds are so much fun

    It made it here. We use it in our pond for weed management we have a large swimming beach area so it helps us maintain a nice pond. Thanks

  • J
    John Sonnendecker J. S. John S.
    28-04-2025

    Product exchange/return

    We thought we ordered crystals not fine. We would like to return /exchange the bag we have for crystals.

  • M
    Mark Hinkle M. H. Mark H.
    24-04-2025

    Just what I was looking for.

    I have availability issues of the fine copper in my area.

  • K
    Katherine Mowbray K. M. Katherine M.
    23-04-2025

    It works

    It took care of the algae problem on my pond.

  • H
    Humberto Silvano H. S. Humberto S.
    18-04-2025

    Packing different a picture

    Why the packing received is blue letters and the photo sale on line is orange? Diiferent concentrations ?

  • e
    elvage jackson E. J. elvage j.
    24-11-2024

    Smooth purchase.

    Quick shipping. Item packed properly. Thanks. I will buy again.

  • t
    tom GODING T. G. tom G.
    13-09-2024

    Great product

    This is my 4th time ordering this product from Seed World ; the product is great and the service is awesome . Keep up the good work

  • T
    Thomas Whitehouse T. W. Thomas W.
    31-08-2024

    Good service

    Great to deal with

  • j
    joseph reichman J. R. joseph r.
    29-08-2024

    Good service

    In The process of using it

  • L
    Luke Garner L. G. Luke G.
    11-08-2024

    Copper sulfate

    Just as described

  • B
    Brad Langrehr B. L. Brad L.
    11-08-2024

    Good experience

    Delivered on time. Good price.

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