Where can I purchase hydrogen peroxide - Surrey

[maron6977]

I want to dip rocks into a bucket of hydrogen peroxide to kill pest anemones & algae .
Any recommendations where I can purchase , say 4L . I've only seen small containers & don't wanna have to buy 12.
Mark

[shiftline]

Drug stores. Dollar stores Costco have 1l ones. May need 4..but beats 12

[Aquattro]

Hydroponic shops sell the strong stuff in 4L jugs

[maron6977]

Went with bleach . Hope it works

[spit.fire]

ive bought it from dollar stores when i need alot

[maron6977]

Bleach really seems to be working & fast . Very impressed. Now to neutralize the bleach.
Thanks Mark

[duncangweller]

Muriatic acid....Canadian tire $11

[toytech]

Bleach brakes down fast in the sun let the rock dry out then rinse . no more bleach . Or add vinegar and test the ph till it turns neutral .