Skip to main content
Home / Pet Supplies & Food / Methylene Blue Fish Tank Aquarium Fish Special Medicine Specifically for Rotting Body Rotting Tail Saprolegnia Disease Reagent Solution

Attributes

Brand -
Category Robotics / STEM Teaching Tools / Pet Supplies & Food
Origin -
Brand AquaCare Pro
Item Form Liquid Solution
Target Species Freshwater Fish
Volume 100 ml
Active Ingredient Methylene Blue
Treatment Type Fungal and Bacterial Infections
Usage Stage Quarantine or Hospital Tank
Color Deep Blue
Shelf Life 24 Months
Country of Origin USA

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Must have for quarantine

Every new fish goes into a quarantine tank with a mild dose of this. It prevents outbreaks in my main display. Very effective against external parasites and fungi.

A

Anonymous

Mar 30, 2026

Rating: 5/5

Saved my Betta!

My betta had severe tail rot and I was worried I would lose him. After following the dosage instructions carefully in a separate hospital tank, his fins started regrowing within a week. Highly recommend keeping this on hand.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Standard reliable treatment

I have used methylene blue for years, and this concentration is perfect. It cleared up the saprolegnia on my angelfish quickly. Make sure to remove carbon from your filter before treating.

A

Anonymous

Mar 24, 2026

Rating: 4/5

Works as described

Successfully treated a case of body rot on one of my cichlids. The water turns very blue, so don't be alarmed. Just follow the directions on the bottle strictly.

A

Anonymous

Mar 14, 2026

Rating: 4/5

Effective but stains everything

The medicine works great for fungal issues on my guppies. Just be very careful not to spill it as it stains silicone and decorations permanently. Use gloves when handling.

A

Anonymous

Mar 03, 2026

Rating: 3/5

Good product, slow shipping

The solution itself worked well for my tetras' minor infections. However, the bottle arrived later than expected, which was stressful since my fish were sick. Product quality is fine though.

5 FAQ

Q: Will this treat Ich (White Spot Disease)?

A: Methylene Blue is primarily effective against fungal infections and some external parasites, but it is not the primary treatment for Ich. We recommend specific Ich treatments for white spot disease.

Q: Does this expire after opening?

A: While the shelf life is 24 months unopened, we recommend using the solution within 6 months of opening for maximum potency. Store in a cool, dark place away from direct sunlight.

Q: Can I use this directly in my main tank with live plants?

A: We recommend using this product in a separate hospital or quarantine tank. Methylene blue can harm beneficial bacteria in your filter and may stain plant leaves or silicone sealant.

Q: Is this safe for scaleless fish like loaches?

A: Scaleless fish are more sensitive to medications. We advise using half the recommended dose and monitoring them closely, or consulting with a veterinarian specializing in aquatic animals.

Q: What is the correct dosage for a 10-gallon tank?

A: Please refer to the instruction label on the bottle for precise measurements based on volume. Generally, it is added drop by drop until the water reaches a light blue tint, but overdosing can be harmful.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
[Ali Health] Dental Implant Initial Consultation Package, Oral Cavity Filling, Crown, Denture, and Implant Assessment

[Ali Health] Dental Implant Initial Consultation Package, Oral Cavity Filling, Crown, Denture, and Implant Assessment

$7.90

3M Industrial Scouring Pad for Polishing, Cleaning, and Rust Removal - Bulk Factory Supply with Aluminum Oxide

3M Industrial Scouring Pad for Polishing, Cleaning, and Rust Removal - Bulk Factory Supply with Aluminum Oxide

$7.20

Bull Socket Storage Box - Multi-Outlet Power Strip with Cord, Home Multifunctional Desktop Cable Organizer, Power Junction Board

Bull Socket Storage Box - Multi-Outlet Power Strip with Cord, Home Multifunctional Desktop Cable Organizer, Power Junction Board

$85.90

Used Car Tires 80-90% New, Sizes 165/185/195/205/215/235/60/70/75 R13/R14/R15

Used Car Tires 80-90% New, Sizes 165/185/195/205/215/235/60/70/75 R13/R14/R15

$65.00

BBP Angular Contact Ball Bearings 7000 7001 7002 7003 7004 7005 7006-E-J

BBP Angular Contact Ball Bearings 7000 7001 7002 7003 7004 7005 7006-E-J

$14.08

Baby Rattle with Teether for 0-1 Year Olds; Ideal Gift for Children's Day

Baby Rattle with Teether for 0-1 Year Olds; Ideal Gift for Children's Day

$14.80

Meiyike Granular Sheep Manure Fertilizer, Fermented and Composted for Vegetables and Flowers, Home Potted Plants, Garden Soil Activator

Meiyike Granular Sheep Manure Fertilizer, Fermented and Composted for Vegetables and Flowers, Home Potted Plants, Garden Soil Activator

$37.54

Used Face Towel Storage Box - Wall-Mounted Bathroom Tissue Holder for Sink and Restroom Organization

Used Face Towel Storage Box - Wall-Mounted Bathroom Tissue Holder for Sink and Restroom Organization

$2.98

Baby Rattle Toy - Chewable Wooden Handheld Drum with Sheepskin, Traditional Newborn Toy for Boys and Girls

Baby Rattle Toy - Chewable Wooden Handheld Drum with Sheepskin, Traditional Newborn Toy for Boys and Girls

$13.00

Mineral Water Bucket Inverted Stand 6L Bottle Pump Dispenser Manual Pressure Water Extractor for Water Coolers

Mineral Water Bucket Inverted Stand 6L Bottle Pump Dispenser Manual Pressure Water Extractor for Water Coolers

$2.09

Marie's Sketch Blending Stumps & Makeup Sponges – Professional Art Supplies for Students

Marie's Sketch Blending Stumps & Makeup Sponges – Professional Art Supplies for Students

$6.06

Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Hot Pot and BBQ Odor Removal

Compact Home Range Hood, Portable USB Desktop Smoke Extractor for Hot Pot and BBQ Odor Removal

$39.00

Wen Zhengming Small Regular Script: Three Versions of Thousand Character Classic, Two Versions of Red Cliff Ode, Close-Up Copying Cards, Wen Zhengming Calligraphy Model Book

Wen Zhengming Small Regular Script: Three Versions of Thousand Character Classic, Two Versions of Red Cliff Ode, Close-Up Copying Cards, Wen Zhengming Calligraphy Model Book

$10.00

Custom Name Stamp, Personalized Seal, Photo-Sensitive Signature Stamp

Custom Name Stamp, Personalized Seal, Photo-Sensitive Signature Stamp

$7.04

ABB Variable Frequency Drive ACS800 Accessory RMIO Flat Cable

ABB Variable Frequency Drive ACS800 Accessory RMIO Flat Cable

$120.00

Qimeng Island WAKUKU 'Start Cheating Now' Series Blind Box, Celebrity Style Plush Toy

Qimeng Island WAKUKU 'Start Cheating Now' Series Blind Box, Celebrity Style Plush Toy

$69.00

Orthodontic Invisible Aligner Case Retainer Storage Box Teeth Corrector Denture Compact Portable Cleaning Box

Orthodontic Invisible Aligner Case Retainer Storage Box Teeth Corrector Denture Compact Portable Cleaning Box

$12.30

Sentury 990 Silent Tire - Sizes 185/195/205/215/225/50/55/60/65 R16/R17/R18/R19

Sentury 990 Silent Tire - Sizes 185/195/205/215/225/50/55/60/65 R16/R17/R18/R19

$342.00

Adult Outdoor Rafting Gear – Large PVC Mesh Waterproof Dry Bag for Swimming and River Trekking

Adult Outdoor Rafting Gear – Large PVC Mesh Waterproof Dry Bag for Swimming and River Trekking

$7.26

Universal Reading Pen Storage Rack – Compatible with Xiao Ji Qiu Qiu, Tun Xiao Meng, Caterpillar, and JOJO Reading Pens

Universal Reading Pen Storage Rack – Compatible with Xiao Ji Qiu Qiu, Tun Xiao Meng, Caterpillar, and JOJO Reading Pens

$10.80

[Daimai Holds Micro-Needle Hair Transplant Patent] Micro-Needle Artistic Hairline Planting, 3000 Grafts for Hair Loss Treatment

[Daimai Holds Micro-Needle Hair Transplant Patent] Micro-Needle Artistic Hairline Planting, 3000 Grafts for Hair Loss Treatment

$71,950.00

PELICAN Air 1535 Lightweight Protective Case, Waterproof Photography Gear Carry-On Luggage with Free Shipping

PELICAN Air 1535 Lightweight Protective Case, Waterproof Photography Gear Carry-On Luggage with Free Shipping

$219.00

Beginner Calligraphy Set: Tian Yingzhang Ou Style Kaishu Copybook, Xuan Paper, and Red-Guided Practice Kit

Beginner Calligraphy Set: Tian Yingzhang Ou Style Kaishu Copybook, Xuan Paper, and Red-Guided Practice Kit

$9.90

High-Efficiency 15KW Three-Phase AC Permanent Magnet Synchronous Motor 380V 220V Rare Earth Variable Frequency Adjustable Speed Motor

High-Efficiency 15KW Three-Phase AC Permanent Magnet Synchronous Motor 380V 220V Rare Earth Variable Frequency Adjustable Speed Motor

$3,493.00

Genuine OEM Car Tires for Pickups, SUVs, and Vans - Sizes 145, 155, 165, 175, 185, 195 R12

Genuine OEM Car Tires for Pickups, SUVs, and Vans - Sizes 145, 155, 165, 175, 185, 195 R12

$60.00

Freestanding Toilet Storage Rack - No-Drill Bathroom Organizer with Tank Shelf and Tissue Basket

Freestanding Toilet Storage Rack - No-Drill Bathroom Organizer with Tank Shelf and Tissue Basket

$19.04

Packaging Machine for Salted Duck Eggs and Chicken Wings, Adjustable Frequency Speed MFL Drying Unit, Manufacturer Discount

Packaging Machine for Salted Duck Eggs and Chicken Wings, Adjustable Frequency Speed MFL Drying Unit, Manufacturer Discount

$37,800.00

Portable Retainer Storage Case – Compact Box for Children's Orthodontic Appliances and Invisalign Aligners

Portable Retainer Storage Case – Compact Box for Children's Orthodontic Appliances and Invisalign Aligners

$13.30

Tang Dynasty Ouyang Xun 'Stele of Lord Huangfu' Calligraphy Copybook, Close-Up Tutorial, Single Volume 79 Pages

Tang Dynasty Ouyang Xun 'Stele of Lord Huangfu' Calligraphy Copybook, Close-Up Tutorial, Single Volume 79 Pages

$9.90

Marco Sketchbook - 8K Sketch Paper, 16K Colored Pencil Paper, A4 Marker Paper for Art Students and Kids

Marco Sketchbook - 8K Sketch Paper, 16K Colored Pencil Paper, A4 Marker Paper for Art Students and Kids

$9.30