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)
Mold Release Oil for Incense Beads and Tags - Colorless, Odorless, Food-Grade Auxiliary Release Agent

Mold Release Oil for Incense Beads and Tags - Colorless, Odorless, Food-Grade Auxiliary Release Agent

$8.00

Tafara Aromatherapy Matches - Premium Extended-Length Safety Matches for Incense Burners (20 Count)

Tafara Aromatherapy Matches - Premium Extended-Length Safety Matches for Incense Burners (20 Count)

$23.80

Magnetic Sponge Holder and Steel Wool Rack for Sink, Stainless Steel No-Drill Kitchen Organizer

Magnetic Sponge Holder and Steel Wool Rack for Sink, Stainless Steel No-Drill Kitchen Organizer

$9.94

Touchmark Square Sketchbook for Acrylic Markers - Thick Paper Art Journal for Quick-Dry, Smudge-Free Drawing

Touchmark Square Sketchbook for Acrylic Markers - Thick Paper Art Journal for Quick-Dry, Smudge-Free Drawing

$10.80

Mo Hao Detail Brush Set, Goat Hair Liner, Wolf Hair Round/Flat Brushes for Oil Painting, Art & Gouache

Mo Hao Detail Brush Set, Goat Hair Liner, Wolf Hair Round/Flat Brushes for Oil Painting, Art & Gouache

$78.00

Authentic Military-style Socks for Men - Summer and Winter Anti-odor Sweat-absorbing Mid-calf Black and Navy Blue Training and Sports Socks

Authentic Military-style Socks for Men - Summer and Winter Anti-odor Sweat-absorbing Mid-calf Black and Navy Blue Training and Sports Socks

$23.80

Alliance Authorized Plaque - Yoga Alliance RYT, Pilates Alliance, International Yoga Alliance, China Yoga Alliance

Alliance Authorized Plaque - Yoga Alliance RYT, Pilates Alliance, International Yoga Alliance, China Yoga Alliance

$380.00

Xiupu Fraycolor Marker Airbrush Kit for Figure Model Painting Portable Rechargeable Airbrush and Pump Set

Xiupu Fraycolor Marker Airbrush Kit for Figure Model Painting Portable Rechargeable Airbrush and Pump Set

$127.00

Caoyige Thickened Felt Calligraphy Mat with Bound Edges - Ideal for Students and Beginners Practicing Brush Writing

Caoyige Thickened Felt Calligraphy Mat with Bound Edges - Ideal for Students and Beginners Practicing Brush Writing

$4.93

Colored Paper Signing Board CP Autograph Panel Japanese Anime Drawing Paper Watercolor Paper Square Blank Signature Card for Markers Anime OC Hand-Drawn Cards

Colored Paper Signing Board CP Autograph Panel Japanese Anime Drawing Paper Watercolor Paper Square Blank Signature Card for Markers Anime OC Hand-Drawn Cards

$10.80

Water Brush Pen Set Large Capacity Beginner Gouache Solid Watercolor Paint Brush Tools Line Drawing Art Student Supplies

Water Brush Pen Set Large Capacity Beginner Gouache Solid Watercolor Paint Brush Tools Line Drawing Art Student Supplies

$32.00

Custom Solid Wood Plaque - Antique Carved Wooden Sign for Shop Grand Opening, Doorway Decoration, Wood Carving, and Couplets

Custom Solid Wood Plaque - Antique Carved Wooden Sign for Shop Grand Opening, Doorway Decoration, Wood Carving, and Couplets

$50.00

Retainer Storage Case for Invisible Aligners, Children's Orthodontic Appliances, and Dentures - Portable Cleaning and Drainage Box for Elderly and Kids

Retainer Storage Case for Invisible Aligners, Children's Orthodontic Appliances, and Dentures - Portable Cleaning and Drainage Box for Elderly and Kids

$11.90

Manufacturer Supply 460 Fast-Drying Glue: High Viscosity, Instant Bond, Low Whitening, Odorless

Manufacturer Supply 460 Fast-Drying Glue: High Viscosity, Instant Bond, Low Whitening, Odorless

$64.00

Large Commercial Electric Peeler - Automatic Peeling Machine for Fruits and Vegetables like Pineapple, Potato, Winter Melon, Pumpkin, and Cantaloupe

Large Commercial Electric Peeler - Automatic Peeling Machine for Fruits and Vegetables like Pineapple, Potato, Winter Melon, Pumpkin, and Cantaloupe

$615.00

DH-20AC Compressed Air Refrigerated Dryer - 2.6 Cubic Meters, High-Temperature Air-Cooled, Compact Air Compressor Dryer

DH-20AC Compressed Air Refrigerated Dryer - 2.6 Cubic Meters, High-Temperature Air-Cooled, Compact Air Compressor Dryer

$4,180.00

Large-Capacity Quilt Storage Bag for Clothes, Comforters, and Down Jackets; Compression Bag for Moving and Luggage

Large-Capacity Quilt Storage Bag for Clothes, Comforters, and Down Jackets; Compression Bag for Moving and Luggage

$3.50

No-Drill Invisible Cable Organizer, Self-Adhesive Wire Fixer, Data Line Clip for Cable Management and Network Routing

No-Drill Invisible Cable Organizer, Self-Adhesive Wire Fixer, Data Line Clip for Cable Management and Network Routing

$3.31

Stainless Steel Polishing Needle for Agarwood and Sandalwood Beads, Handmade Incense Tool, DIY Incense Materials

Stainless Steel Polishing Needle for Agarwood and Sandalwood Beads, Handmade Incense Tool, DIY Incense Materials

$15.00

Rectangular Plastic Planter for Outdoor Balcony Gardening - Ideal for Vegetables and Strawberries

Rectangular Plastic Planter for Outdoor Balcony Gardening - Ideal for Vegetables and Strawberries

$75.50

Windshield Washer Pump for Mitsubishi Outlander 8L84-17664-AA

Windshield Washer Pump for Mitsubishi Outlander 8L84-17664-AA

$81.28

Lotus DIY Handmade Soap Silicone Mold - Lotus Leaf, Root, and Seed Pod Designs for Soap Base and Baking

Lotus DIY Handmade Soap Silicone Mold - Lotus Leaf, Root, and Seed Pod Designs for Soap Base and Baking

$4.93

Multi-Function Herbal Slicer and Dicer for Roots, Rhizomes, Vines, Leaves, and Branches | Slicing Machine for Acorus Tatarinowii, Dried Tangerine Peel, and Polygonatum

Multi-Function Herbal Slicer and Dicer for Roots, Rhizomes, Vines, Leaves, and Branches | Slicing Machine for Acorus Tatarinowii, Dried Tangerine Peel, and Polygonatum

$500.00

Multifunctional Outdoor Water Bag Swimming Float Maijia Qian Safety Buoy 10KG Tent Ballast Water Storage Bag

Multifunctional Outdoor Water Bag Swimming Float Maijia Qian Safety Buoy 10KG Tent Ballast Water Storage Bag

$21.89

Natural Mint Aromatherapy Incense, Osmanthus and Gardenia Scents, Mugwort Stick Incense for Bedroom, Refreshing and Sleep-Aiding

Natural Mint Aromatherapy Incense, Osmanthus and Gardenia Scents, Mugwort Stick Incense for Bedroom, Refreshing and Sleep-Aiding

$6.43

Factory Stock Kubu Asu Washing Machine - Commercial Canned Fruit Hawthorn and Cherry Bubble Cleaning Equipment

Factory Stock Kubu Asu Washing Machine - Commercial Canned Fruit Hawthorn and Cherry Bubble Cleaning Equipment

$7,066.00

No More Games - Leslie Cheung & Koji Tamaki Saxophone Cover with City Pop Sheet Music and Backing Track

No More Games - Leslie Cheung & Koji Tamaki Saxophone Cover with City Pop Sheet Music and Backing Track

$26.00

2026 New Year Rubbing Art Kit - DIY Craft Material Set with Horse Year Fu Character Stencils for Kindergarten

2026 New Year Rubbing Art Kit - DIY Craft Material Set with Horse Year Fu Character Stencils for Kindergarten

$3.98

Used Car Tires 185 195 205 215 235/55 60 70R13 14 15 16 Random Tread Pattern

Used Car Tires 185 195 205 215 235/55 60 70R13 14 15 16 Random Tread Pattern

$57.80

Sponge Stamp Painting Tools Stamping Rods Kindergarten Children's Art Supplies Mushroom Head Sponge Brushes

Sponge Stamp Painting Tools Stamping Rods Kindergarten Children's Art Supplies Mushroom Head Sponge Brushes

$3.50