New Arrivals/Restock

Aquarium Methylene Blue 100ml

flash sale iconLimited Time Sale
Until the end
12
30
53

US$3.59 cheaper than the new price!!

Free shipping for purchases over $99 ( Details )
Free cash-on-delivery fees for purchases over $99
Please note that the sales price and tax displayed may differ between online and in-store. Also, the product may be out of stock in-store.
Used  US$2.40
quantity

Product details

Management number 235158950 Release Date 2026/07/02 List Price US$2.40 Model Number 235158950
Category

NT Labs Methylene Blue can be used to treat bacterial, fungal, and some external protozoan parasitic infections. Methylene Blue is suitable for both coldwater and tropical aquariums and is safe for use with eggs and fry. It is best used in a quarantine aquarium or treatment bath but can also be added directly to the aquarium, when transporting fish, or applied directly to wounds.

If applying directly to wounds, dab undiluted Methylene Blue on affected areas using a cotton bud.

When to Use?
When fish, fry, or eggs show signs of fungal infections such as fluffy cotton wool-like growths. If fish have grey, velvety film over their body or have excess mucus. If fish have red open wounds, ulcers, missing scales, rotting fins, or eroded mouth tissue.

Continue filtration during treatment but remove carbon. Carry out a 25% water change after finishing treatment, add NT Labs Filter Starter to the aquarium, and reapply carbon to the filter.

Please Note:
- This product may kill live plants and shrimp if overdosed
- This product will affect beneficial bacteria in the biofilter
- This product can stain skin, aquarium ornaments, and silicone


Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Product Review

You must be logged in to post a review