Original price was: ₹ 1,268.00.₹ 1,200.00Current price is: ₹ 1,200.00.
Seachem SulfaPlex 10g is a broad-spectrum antibiotic and antifungal aquarium medication for susceptible bacterial, fungal and certain protozoan infections.
- Active ingredient: Sulfathiazole 69%
- Suitable for freshwater & marine fish
- Useful for bacterial and fungal infections
- Dose: 2–3 measures per 40L
- Repeat every 72 hours for up to 3 weeks
- Can also be mixed with food + Seachem Focus
- Does not normally impair biological filtration when used as directed
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Seachem SulfaPlex 10gm – Broad Spectrum Antibiotic & Antifungal Fish Treatment
Seachem SulfaPlex 10gm is a broad-spectrum aquarium medication used to treat a range of bacterial, fungal and certain protozoan infections in ornamental fish.
It contains sulfathiazole 69% and is suitable for both freshwater and marine aquariums. SulfaPlex is especially useful for fish that are already stressed because it is considered one of Seachem’s gentler antibiotic options and does not normally impair biological filtration when used as directed.
What Does Seachem SulfaPlex Treat?
SulfaPlex may be used for susceptible bacterial, fungal and protozoan conditions, including:
- Columnaris
- External bacterial infections
- Fungal growth and cotton-like lesions
- Secondary fungal infections
- Some susceptible protozoan infestations
Many fish diseases share similar symptoms, so correct diagnosis is important before starting medication.
Active Ingredient
- Sulfathiazole: 69%
- Inactive Ingredients: Excipients 31%
Key Benefits
- Broad-spectrum antibiotic and antifungal medication
- Treats many bacterial, fungal and certain protozoan infections
- Suitable for freshwater and marine aquarium fish
- Particularly effective against common freshwater bacterial and fungal infections
- Gentler option for stressed fish
- Does not normally impair nitrification when used as directed
- Can be removed easily after treatment using activated carbon
How to Dose Seachem SulfaPlex in Aquarium Water
Recommended dosage: 2–3 measures per 40 litres of aquarium water.
Repeat the dose every 72 hours for up to 3 weeks, or until the infection clears.
Seachem states that SulfaPlex is generally most effective when dosed directly into the aquarium water.
Example Water Dosage
| Aquarium Volume | SulfaPlex Dose |
|---|---|
| 40L | 2–3 measures |
| 80L | 4–6 measures |
| 120L | 6–9 measures |
| 200L | 10–15 measures |
How to Use SulfaPlex in Fish Food
SulfaPlex can also be mixed with fish food when required.
Food Mixing Recipe
- 1 scoop SulfaPlex
- 1 scoop Seachem Focus
- 1 tablespoon fish food
- A few drops of water if using dry food
Feed the medicated food daily until the infection clears, for up to 3 weeks.
For improved palatability, products such as GarlicGuard or Entice may be used according to manufacturer directions.
Columnaris Treatment
Columnaris is a contagious bacterial disease that may cause lesions, frayed fins, pale patches and mouth-area damage.
If possible, infected fish should be isolated in a separate hospital aquarium to reduce transmission and allow more controlled treatment.
Fungal Infections
Fungal infections often appear as cotton-like white growths on the skin or damaged areas.
True fungal infections are frequently secondary problems that develop after injury, stress or another underlying disease. Treating the visible fungal growth is important, but the underlying cause should also be investigated.
Important Treatment Precautions
Before dosing SulfaPlex into aquarium water:
- Remove all invertebrates
- Switch off UV sterilizers
- Switch off ozone
- Remove activated carbon
- Remove Purigen or other chemical filtration media
Invertebrates are highly sensitive to many aquarium medications, so treatment in a dedicated hospital tank is preferred whenever practical.
Does SulfaPlex Affect the Biological Filter?
Seachem states that SulfaPlex does not impair nitrification when used as directed.
However, during any medication course it is still advisable to monitor:
- Ammonia
- Nitrite
- Fish behaviour
- Water quality
Freshwater & Marine Aquarium Use
SulfaPlex can be used in both freshwater and marine ornamental fish aquariums.
Seachem specifically notes that it is one of the more effective sulfa medications for saltwater use while also being particularly useful against common freshwater bacterial and fungal infections.
After Treatment
When treatment is complete, SulfaPlex can be removed using activated carbon such as MatrixCarbon.
The medication does not normally remain in the substrate or filter media after treatment.
UV sterilization and chemical filtration may be resumed after the medication has been removed.
Common Signs of Bacterial or Fungal Infection
- White or cotton-like growths
- Skin lesions
- Fin deterioration
- Discoloration
- Clamped fins
- Reduced appetite
- Abnormal behaviour
These signs can also occur with parasites, poor water quality or physical injury, so the cause should be assessed before medication is started.
SulfaPlex vs NeoPlex
SulfaPlex combines broad antibacterial and antifungal activity and can also be useful against certain protozoan infestations.
Seachem NeoPlex contains neomycin sulfate and is primarily positioned for susceptible bacterial infections, especially external bacterial conditions.
If fungal involvement is suspected in addition to bacterial infection, SulfaPlex may be the more appropriate choice.
SulfaPlex vs KanaPlex
Seachem KanaPlex contains kanamycin and is another broad-spectrum antibiotic used for susceptible bacterial infections.
SulfaPlex uses sulfathiazole and adds broader antifungal application, so the correct medication should be selected according to the suspected infection and manufacturer guidance.
Product Specifications
- Brand: Seachem
- Product: SulfaPlex
- Pack Size: 10g
- Active Ingredient: Sulfathiazole 69%
- Type: Broad-spectrum antibiotic & antifungal medication
- Suitable For: Freshwater & marine ornamental fish
- Water Dosage: 2–3 measures per 40L
- Repeat: Every 72 hours
- Maximum Treatment: Up to 3 weeks
- Food Treatment: Daily for up to 3 weeks
Safety Information
- For aquarium use only
- For ornamental fish only
- Not for human consumption
- Keep away from children
- Do not use with animals intended for human consumption
- Use only according to manufacturer directions
Buy Seachem SulfaPlex 10g in India
Buy Seachem SulfaPlex 10g in India from Aqua Zones for treating susceptible bacterial, fungal and certain protozoan infections in ornamental aquarium fish.
Explore more Seachem aquarium medications and fish-care products available from Aqua Zones.
Seachem SulfaPlex 10gm
Seachem is a leading aquarium care brand offering specialised products for freshwater, planted and marine aquariums. Its extensive range covers water conditioning, biological support, filtration media, aquatic plant nutrition, water clarification and fish care.
Explore Seachem aquarium products in India at Aqua Zones, including some of the brand's most popular aquarium care products such as Seachem Prime, Stability, Pristine and Clarity for water conditioning, biological support and aquarium water care.
For aquarium filtration, popular Seachem products include Seachem Purigen and Seachem Matrix. Purigen is a premium synthetic filtration media designed to remove organic waste from aquarium water, while Matrix provides highly porous biological filtration media for supporting aquarium biofiltration.
Planted aquarium enthusiasts can explore the Seachem Flourish range, including products such as Flourish, Flourish Excel, Flourish Advance, Flourish Trace, Flourish Iron, Flourish Potassium, Flourish Nitrogen and Flourish Phosphorus for aquatic plant care and nutrition.
Seachem also offers specialised fish care and medication products including Seachem KanaPlex, MetroPlex and Focus, along with a wider range of products for maintaining fish health and aquarium conditions.
Whether you maintain a freshwater aquarium, planted aquascape or marine aquarium, Seachem offers specialised solutions for water quality, filtration, aquatic plant nutrition and fish care.
Shop genuine Seachem aquarium products online in India at Aqua Zones, including Seachem Prime, Purigen, Matrix, Stability, Flourish products and other popular Seachem aquarium supplies.
Buy Seachem Aquarium Products in India
Shop genuine Seachem Aquarium Products in India at Aqua Zones. Explore Seachem Prime, Stability, Purigen, Matrix, Flourish, Flourish Excel, KanaPlex, MetroPlex and Focus, along with Seachem fertilizers, aquarium medicines, buffers, water conditioners, filter media, test products and equipment for freshwater, planted and marine aquariums.
SHIPPING
Orders placed before 12Noon will be processed & shipped on the same day (excluding Sunday & local holiday)
Delivery within 2 ~ 6 days depends on the ordered item and shipping mode
Guaranteed 48Hrs door delivery for Light Weight Parcels for some products/brands
Certain Drop Ship products (brands) like AquaVitro, Fritz, Eheim, Fluval, Ocean Nutrition,Dr. Bassleer Bio Fish Food may take 1-2 days to process and ship from drop shipper locations.
Shipping and delivery time may vary as per courier which is subject to availability
Shipping will be done through BlueDart, Delhivery, DTDC, Amazon Shipping, eKart, EcomExpress, Speed Post , Professional Courier and ST Courier
However, if you have any preferred courier partner then kindly make a note while placing the order.
We have warehouse in all metro and in some major cities. Shipping will be done from Chennai, Bangalore, Delhi, Kolkata, Mumbai, Pune and Hyderabad, subject to stock availability locations
For more information click here
DELIVERY
Kindly note that unboxing video is mandatory for multi part products like skimmer, canister filter, LED lights, pump and glassware items to confirm the receipt of the contents inside the box are in tact and safe.
Kindly note that all shipments are insured against transit damage. Customer need to report the damage within 48Hrs against receipt of the shipment, NO refund / NO exchange / NO replacement will be offered if customer fail to provide unboxing video or inform the damage
Pre Paid Shipping included.
All prices mentioned in the site are inclusive of GST and Shipping Cost**
** – GST credit not available for certain products + additional shipping charges may be applicable for certain products/brands or for certain pincode. Additional shipping cost will be displayed during checkout, subject to minimum order value
DELIVERY
Kindly note that unboxing video is mandatory for multi part products like skimmer, canister filter, LED lights, pump and glassware items to confirm the receipt of the contents inside the box are in tact and safe.
Kindly note that all shipments are insured against transit damage. Customer need to report the damage within 48Hrs against receipt of the shipment, NO refund / NO exchange / NO replacement will be offered if customer fail to provide unboxing video or inform the damage
Pre Paid Shipping included.
All prices mentioned in the site are inclusive of GST and Shipping Cost**
** – GST credit not available for certain products + additional shipping charges may be applicable for certain products/brands or for certain pincode. Additional shipping cost will be displayed during checkout, subject to minimum order value
SHIPPING
Orders placed before 12Noon will be processed & shipped on the same day (excluding Sunday & local holiday)
Delivery within 2 ~ 6 days depends on the ordered item and shipping mode.
Guaranteed 48Hrs door delivery for Light Weight Parcels for some products/brands
Orders placed after 11AM will be shipped on next business day.
Certain Drop Ship products (brands) like AquaVitro, Fritz, Marrggoo, Eheim, Fluval and Ocean Nutrition may take 1-2 days to process and ship from drop shipper locations.
Shipping and delivery time may vary as per courier which is subject to availability
Shipping will be done through BlueDart, Delhivery, DTDC, Amazon Shipping, eKart, EcomExpress, Speed Post , Professional Courier and ST Courier
However, if you have any preferred courier partner then kindly make a note while placing the order.
We have warehouse in all metro and in some major cities. Shipping will be done from Chennai, Bangalore, Delhi, Kolkata, Mumbai, Pune and Hyderabad, subject to stock availability locations
For more information click here



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