Quality Fish Care Products

Fish Dox Doxycycline 100mg can be used in the aquarium for treating various fish diseases. Used for fin rot, tail rot, popeye, etc...

For fish use only. Not for human consumption.
10 Capsules: $14.99
20 Capsules: $19.99
30 Capsules: $24.99
50 Capsules: $34.99
100 Capsules: $59.99


 Save $'s if payment is made by eCheck, Bitcoin, or Pay by Mail

Other related products



Credit Card  
Chose Quantity then Add to Cart


Discounted price if payment is made by eCheck or Pay by Mail. There is a delay on echeck orders which are shipped within 1 to 7 business days (excluding Saturday, Sunday, and Holidays). If a screenshot is emailed of the cleared echeck we can ship before we are notified that it has cleared.

eCheck or Pay by Mail
Chose Quantity then Add to Cart


Discounted price if payment is made by Bitcoin. Clears instantly with no delay in shipping. It does take a little bit of time to set up a Bitcoin wallet, but once it is set up it can be used over and over again. Funds can be sent to the wallet using a credit card.

Bitcoin Add to Cart Links

10 Capsules $10.99

20 Capsules $14.99

30 Capsules $19.99

50 Capsules $29.99

100 Capsules $49.99


Fish Dox Doxycycline (Doxy-Cycline)
Doxycycline 100mg

Exerts a bactericidal action on gram positive and some gram negative bacteria in fish. Is useful for control of some common bacterial diseases in fish, including septicemia, mouth rot, and fin and tail rot.

Fish Doxycycline antibiotic fights and halts the growth of bacteria and kills bacteria. This particular type of fish doxycycline is designed for taking on the microorganisms that cause several common bacterial diseases in fish. Some examples include mouth, fin, or tail rot, all deteriorating infections; and septicemia, a lethal and horrific virus.

Directions: Add 1 capsule (100 mg) into aquarium for every 15 gallons of water to be treated. Repeat in 24 hours. It is suggested that a partial water change be made between treatments. While duration of treatment depends on type and severity of infection, it is recommended that extended medication baths continue for a minimum of 5 days but not more than 10 days. Discontinue treatment if no improvement is noted within 5 days. To remove harmless yellow color, change 20% of water and use charcoal filter until clear.

For aquarium and ornamental fish use only. Not for human consumption.