Description
Suitable for coldwater & tropical aquariums. Treatment for bacterial, fungal, and some external protozoan parasitic infections of fish, fry, and eggs.
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.
- Methylene Blue can be used to treat bacterial, fungal, and some external protozoan parasitic infections. It is safe for use with eggs and fry. It is best used in a quarantine aquarium or treatment bath but can be added to the aquarium water, when transporting fish, or applied directly to wounds.
Warning:
- 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.
- 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.
- If applying directly to wounds, dab undiluted Methylene Blue on affected areas using a cotton bud.
How to Use:
- Calculate the volume of your aquarium in litres (length x width x depth (in cm)/1000). Alternatively visit: www.nt-labs.com/dosage-calculator and we will calculate it for you!
- Shake bottle thoroughly before use.
- Mix required dose of treatment with 1 litre of aquarium water. Add slowly to aquarium.
- For a dip dose, see the label for the correct dosage rate.
- Treatment can be repeated 4 days after last dose. If you feel a second dose is required, first check your diagnosis is correct, test your water quality using NT Labs Test Kits and carry out a 30% partial water change.
Click & Collect
Livestock will only be bagged once you arrive, or if you contact us in advance to request it ready beforehand.
Local Delivery
Order anything from our in-store range and have it delivered right to you.
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Minimum spend: £50
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Delivery up to 10 miles: £10
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Delivery up to 25 miles: £20
Distances are measured “as the crow flies”, not by road.
Once your order is placed, we’ll be in touch to arrange a suitable delivery date and time.
Please note, delivery may take a little longer as we often group orders together to build an efficient delivery run.
Important: If you’re ordering a large aquarium, please ensure someone is available to help unload the van on arrival.
Dry Goods Delivery
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DPD Next Day: 1 working day (order before 12 noon)
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DX Next Day (Heavy Items & Small Aquariums): 1 working day (order before 12 noon)
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Express Pallet: 1–3 working days
If you'd like to add more items to an existing order that hasn't yet been dispatched, please place a Click & Collect order and leave a note asking us to combine the orders.
Please note: We currently only dispatch parcels Wednesday to Friday.
Pre-Order
Want the full details? Check out our Terms & Conditions.
Livestock Delivery
Thursday Delivery – £24
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Dispatched Wednesday afternoon
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Delivered Thursday before 1pm
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Order by Wednesday 12 noon
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Minimum spend: £50
Friday Delivery – £24
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Dispatched Thursday afternoon
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Delivered Friday before 1pm
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Order by Thursday 12 noon
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Minimum spend: £50
Saturday Delivery – £29
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Dispatched Friday afternoon
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Delivered Saturday before 1pm
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Order by Friday 12 noon
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Minimum spend: £50
📦 Want to Add to an Existing Order?
No problem! Just place a Click & Collect order and leave a note asking us to link it with your original one (as long as it hasn’t been dispatched yet).
🛒 Dry Goods Now Included!
You can now include dry goods in your livestock delivery – perfect for topping up supplies in one go.
❄️ Please note: We can’t send frozen food with livestock – please order frozen items separately.
⚠️ Delivery Exclusions
Unfortunately, we’re unable to deliver livestock to the following postcodes:
Scotland & Isles:
AB30–AB56, DD8–DD10, DG3–DG9, DG12–DG14, FK17–FK21, KA18–KA19, KA26–KA30, PA20–PA38, PA80, PH3–PH40
Cornwall Isles: TR21–TR25
All of the following postcodes are excluded:
BT, HS, IM, IV, JE, KW
Plus Channel Islands and Shetland Islands
Payment & Security
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