---
product_id: 48317778
title: "White Spot Treatment for Tropical Fish (100ml Treats 500L)"
brand: "nt labs"
price: "$22.21"
currency: USD
in_stock: true
reviews_count: 8
category: "Nt Labs"
url: https://www.desertcart.us/products/48317778-white-spot-treatment-for-tropical-fish-100ml-treats-500l
store_origin: US
region: United States of America
---

# 7-day targeted treatment course 100ml treats 500L water Non-toxic to shrimp & snails White Spot Treatment for Tropical Fish (100ml Treats 500L)

**Brand:** nt labs
**Price:** $22.21
**Availability:** ✅ In Stock

## Summary

> 🐠 Clear water, happy fish — beat white spot before it beats you!

## Quick Answers

- **What is this?** White Spot Treatment for Tropical Fish (100ml Treats 500L) by nt labs
- **How much does it cost?** $22.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/48317778-white-spot-treatment-for-tropical-fish-100ml-treats-500l)

## Best For

- nt labs enthusiasts

## Why This Product

- Trusted nt labs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Proudly British Quality:** Manufactured in the UK under strict safety & environmental standards
- • **Visible Results in Days:** White spots vanish by day 3, restoring your fish’s vibrant health
- • **Powerful Dual-Action Formula:** Malachite Green & Formaldehyde combo eradicates white spot & fungus fast
- • **Precision Dosing Made Simple:** Use NT Labs Dosage Calculator or manual calculation for perfect treatment
- • **Safe for Your Entire Aquarium:** Formulated to protect sensitive species like shrimp, snails & fish alike

## Overview

NT Labs White Spot Treatment is a 100ml liquid solution designed to treat up to 500L of aquarium water. It combines Malachite Green (140 mg/100 ml) and Formaldehyde (800 mg/100 ml) to effectively eliminate protozoan parasites causing white spot and fungal infections. The 7-day treatment course is easy to dose, safe for fish, shrimp, and snails, and delivers visible results within days. Proudly made in the UK, it ensures reliable, professional-grade care for your tropical fish.

## Description

Free delivery and returns on eligible orders. Buy NT Labs Aquarium Anti White Spot & Fungus Treatment (100ml Treats 500L) | 7-day malachite green & formaldehyde course cures white spot & cotton wool fungus. Non-toxic to shrimp & snails. at desertcart UK.

Review: It works - I finished last treatment on Monday today being wednesday and white spot is gone. I bought new fish from a different supplier and made fatal error - didn't isolate the new fish. Within a day new fish were covered in white spot. I Lost all but two of them. Then my residential fish then went on to catch white spot even after water changes adding aquarium salt and a more expensive natural white spot treatment as I was worried about using nt labs treatment because I have shrimp and snails. With everyday I treated the tank with nt labs treatment I lost a fish the following day. I'm not sure if it was treatment or white spot as all together I lost 12 fish with white spot including rummy nose tertas, galaxy rasboras, cardinal tetras, ember tetras and my grandsons favourite a red dragon scaled betta named draco However fish now all look healthy and not seen any white spot since day three of treatment. And all my snails and shrimp survived unscathed. Due to how bad the white spot infection was and the effective of this treatment I'd recommend. However some fish maybe sensitive to the treatment so do your research
Review: Saved my tank!! - Saved my fish and didn't harm my snails or plecos. Use per instructions and your tank will be fine. Easy to dose. It will turn your water a funny colour but does disperse.

## Features

- May cause an allergic skin reaction.
- May cause cancer.
- 【 WHITE SPOT TREATMENT 】: White spot is a protozoan parasite; the adults live on the fish and appear as tiny white spots. The adult has a complex life cycle which results in hundreds of free-swimming juveniles looking for a host fish to infest. Combat white spot and fungus in your aquarium with our specialised Aquarium Anti-White Spot & Fungus solution, containing two active ingredients - Malachite Green (140 mg/100 ml) and Formaldehyde (800 mg/100 ml).
- 【 RELIEVES FISH FROM IRRITATION 】: Easily identify when to use the treatment by observing small white spots resembling grains of salt on your fish. If your fish show signs of irritation, rubbing against objects, exhibit a grey, velvety film or have white cotton wool-like growths on their body/mouth/ fins, our treatment is the perfect solution.
- 【 EASY TO USE 】: Simply calculate the volume of your aquarium in litres (length x width x depth in cm/1000) or use the NT Labs online Dosage Calculator. Shake the bottle thoroughly before use and mix required dose of treatment with 1 litre of aquarium water. Add slowly to aquarium. Changing water between doses is not recommended, except in an emergency. Follow these simple steps for optimal results.
- 【 7-DAY COURSE OF TREATMENT 】: Designed as a 7-day course of treatment, our powerful solution efficiently targets protozoan parasites, providing comprehensive relief for your fish. Adding the first dose to the aquarium is day 1. Repeat the dose on days 3, 5, and 7. After the 7th day, wait 7 days before a partial water change. Repeat or use another medication as needed, following the same dosing schedule.
- 【 NON-TOXIC TO SNAILS, SHRIMP AND FISH 】: The concentration of the product is non-toxic to snails, shrimp and fish, etc. All of the medication in our Aquarium range are formulated with sensitive species in mind. There's no need to use half doses, but if you think you have a particularly sensitive fish, you can always give the treatment as two halves given throughout the day. The solution will colour the water green but this should fade within a few days of the final dose being added.
- [ MADE IN BRITAIN ] : Proudly formulated and manufactured in the UK to strict quality, environmental and safety standards, delivering exceptional product reliability you can trust.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0084JKZP4 |
| Best Sellers Rank | 8,582 in Pet Supplies ( See Top 100 in Pet Supplies ) 99 in Aquarium Water Treatments |
| Brand | NT Labs |
| Brand Name | NT Labs |
| Customer Reviews | 4.6 out of 5 stars 464 Reviews |
| Item Form | Liquid |
| Item Type Name | Aquarium Anti - White Spot and Fungus |
| Item Weight | 0.13 Kilograms |
| Item form | Liquid |
| Item weight | 0.13 Kilograms |
| Liquid Volume | 100 Millilitres |
| Liquid volume | 100 Millilitres |
| Manufacturer | NT Labs Aquarium |
| Manufacturer Part Number | NT477 |
| Model Number | NT477 |
| Pet Type | Fish |
| Product Warranty | 1 |
| Target Species | Fish |
| UPC | 733809004770 |
| Unit Count | 1 count |
| Unit count | 1 count |

## Product Details

- **Brand:** NT Labs
- **Item form:** Liquid
- **Item weight:** 0.13 Kilograms
- **Liquid volume:** 100 Millilitres
- **Unit count:** 1 count

## Images

![White Spot Treatment for Tropical Fish (100ml Treats 500L) - Image 1](https://m.media-amazon.com/images/I/71ACbGmVYKL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is it safe to use with shrimps in tank**
A: yes

**Q: Is it ok to do small water change during 7 day treatment?**
A: I’d recommend no water changes till treatment period has finished.

**Q: Can you this in a pond?**
A: The instructions say for all ornamental fish only and the dosage is for aquariums, so not sure about ponds.

**Q: Will i need to take anything out of my filter?**
A: I didn’t take anything out of the filter, just worked out how much treatment to use, it worked well fish were fine after a while.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works
*by M***E on 23 April 2025*

I finished last treatment on Monday today being wednesday and white spot is gone. I bought new fish from a different supplier and made fatal error - didn't isolate the new fish. Within a day new fish were covered in white spot. I Lost all but two of them. Then my residential fish then went on to catch white spot even after water changes adding aquarium salt and a more expensive natural white spot treatment as I was worried about using nt labs treatment because I have shrimp and snails. With everyday I treated the tank with nt labs treatment I lost a fish the following day. I'm not sure if it was treatment or white spot as all together I lost 12 fish with white spot including rummy nose tertas, galaxy rasboras, cardinal tetras, ember tetras and my grandsons favourite a red dragon scaled betta named draco However fish now all look healthy and not seen any white spot since day three of treatment. And all my snails and shrimp survived unscathed. Due to how bad the white spot infection was and the effective of this treatment I'd recommend. However some fish maybe sensitive to the treatment so do your research

### ⭐⭐⭐⭐⭐ Saved my tank!!
*by L***O on 31 August 2026*

Saved my fish and didn't harm my snails or plecos. Use per instructions and your tank will be fine. Easy to dose. It will turn your water a funny colour but does disperse.

### ⭐⭐⭐⭐⭐ Good product and decent price
*by K***9 on 13 January 2026*

I used the NT Labs Anti White Spot & Fungus treatment when a couple of fish in my tank started showing those classic tiny white spots, and overall it did a good job clearing things up. The dosing schedule was easy to follow, and I appreciated that it didn’t seem to harm my plants or filter system while it worked. The water did turn a bit green during treatment, which wasn’t ideal for aesthetics, but it cleared up a few days after finishing the course. Most importantly, my fish looked much healthier and more active after the treatment — so for the price and ease of use, I’d say it’s a solid choice for dealing with common freshwater ailments.

## Frequently Bought Together

- NT Labs Aquarium Anti White Spot and Fungus Treatment, Cures White-Spot Disease, Treats Fish Fungus, Freshwater Aquarium Medicine, 100ml Treats 500 litres (100ml)
- Interpet Anti Fungus and Finrot Aquarium Fish Treatment, Treats Affected Fish, Prevents Disease Spreading, 100 ml, Treats 500 litres

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-15*