Quick Summary
NT Labs Methylene Blue is an aquarium fish medicine for coldwater and tropical aquariums. It is described as treating bacterial, fungal and some external protozoan parasitic infections, and the 100 ml bottle is stated to treat 900 L.
The medicine is also described as safe for eggs and fry, with use in a quarantine aquarium or treatment bath, or by adding it to aquarium water. For buyers, the key checks are aquarium volume, the type of problem being treated and whether the selected offer is the 100 ml bottle.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | NT Labs, so the product can be identified as a branded aquarium medicine. |
| Product type | Methylene Blue aquarium fish medicine for treating infections in fish, fry and eggs. |
| Treated volume | 100 ml treats 900 L, which is the main pack-size check before purchase. |
| Target use | Coldwater and tropical aquariums. |
| Use with young stock | Safe for eggs and fry. |
| Use method | Can be used in a quarantine aquarium or treatment bath, and can also be added to aquarium water. |
What to Compare Before Buying
- Aquarium volume: The bottle is stated to treat 900 L, so compare that figure with the total water volume you need to treat.
- Problem type: It is described for bacterial, fungal and some external protozoan parasitic infections, so check that this matches the issue you are dealing with.
- Tank type: It is described for coldwater and tropical aquariums, which helps you confirm the intended setup.
- Use setting: Decide whether you plan to use it in a quarantine aquarium, a treatment bath or in the main aquarium water.
Common Buyer Questions
Can it be used with eggs and fry?
Yes. It is described as safe for eggs and fry.
Is it only for one type of aquarium?
No. It is described for both coldwater and tropical aquariums.
How is it used?
Shake the bottle thoroughly before use, mix the required dose with 1 litre of aquarium water, then add it slowly to the aquarium.
Before You Decide
Check the aquarium volume first, then confirm that the issue you need to treat matches the stated bacterial, fungal or external protozoan use. Also make sure you are choosing the 100 ml bottle that treats 900 L. Follow the manufacturer’s instructions before use, and do not use it for human consumption.











