how do you use it for brine shrimp?

You soak any food source such as brine shrimp in the formula. I don’t think live brine shrimp would work though.

Can this be used in freshwater aquariums?

The bottles I have say Marine Use Only...sorry.However, I do use on food I give my Angels and Madag. Rainbows...which is freshwater. No harm that I can see.

How long will a bottle last with normal use?

I use it only once a week. It last me a long time because I use other supplements on other days so about 5 months. 220 gallon tank

is this the same as Zoecon?

Very similar. Selcon is the original formula. Kent made Zoecon years after Selcon was on the market.

Selcon Vitamin Supplement 60 Ml 2 Oz By American Marine

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

🐠 Elevate your reef’s glow with every drop!

WATER CHEMISTRY SAFE - Formulated without yeast, phosphate, or nitrates to keep your marine environment pristine and balanced.
FILTER FEEDER FRIENDLY - Can be added directly to tanks to nourish invertebrates, enhancing the entire reef ecosystem.
REEF READY NUTRITION BOOST - Enriches your aquarium with essential vitamins, lipids, and fatty acids missing from typical foods.
LATERAL LINE DISEASE DEFENSE - Clinically supports prevention and treatment of common fish ailments for healthier, more vibrant aquatic life.
VERSATILE FEEDING COMPATIBILITY - Easily mixes with live, frozen, or dried foods using the included dropper for hassle-free dosing.

American Marine Selcon is a 60 mL liquid vitamin supplement designed specifically for marine aquariums. It enriches fish and invertebrate diets with vital vitamins, lipids, and fatty acids, helping prevent lateral line disease without altering water chemistry. Compatible with all food types and safe for reef environments, it’s a trusted booster for vibrant, healthy aquatic life.

Specifications

ASIN	B000255MGU
Best Sellers Rank	37,371 in Pet Supplies ( See Top 100 in Pet Supplies ) 379 in Aquarium Water Treatments
Brand	American Marine
Brand Name	American Marine
Customer Reviews	4.3 out of 5 stars 39 Reviews
Item Form	Liquid
Item Weight	0.2 Pounds
Item form	Liquid
Item weight	0.2 Pounds
Liquid Volume	60 Millilitres
Liquid volume	60 Millilitres
Manufacturer	American Marine
Manufacturer Part Number	SELCON
Model Number	SELCON
Number of Items	1
Number of Packs	1
Pet Type	Fish
Target Species	Invertebrates
UPC	687951601007 125154580007 019022445102
Unit Count	60 millilitre
Unit count	60 millilitre

Reviews

A**D

Improved yellow tang fin health

Our yellow tang was show some sign of poor health in its fins. I started adding Selcon to flake food once a day and within 2-3 weeks it was fully back to normal. Fish look health and very colourful. Fairly expensive stuff but definitely worth it.

8.08.2025

R**E

Good

Good product

2.08.2025

D**D

Somewhat overpriced vitamins

Overpriced for what it ultimately is - vitamins

28.05.2026

D**D

My reef tank loves it

Great food vitamins .i put on seaweed sheets,and put on frozen foods

5.04.2021

L**D

Nice taste like chicken

Go great on chips

17.09.2019

R**T

Great additive

Great vitamin addition to any fish food

29.03.2019

H**N

Great

Did what I needed and on time.

17.02.2020

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