API ALGAEFIX Algae Control – 473ml
API ALGAEFIX algae control effectively controls many types of algae in aquariums and will not harm your fish or plants when used as directed. You can use ALGAEFIX algae control as part of your aquarium maintenance routine to control the formation of new algae.
- Use 1 ml per 10 gallons or 5 ml per 50 gallons of aquarium water
- Repeat dose every three days until algae is controlled
- After algae growth is under control, use one dose per week for ongoing prevention
- Siphon or scrape any dead algae from the aquarium
| Usage Instructions | Frequency |
|---|---|
| Initial treatment | Every 3 days until algae is reduced |
| Preventive maintenance | Once per week |
CAUTION: Do not use with freshwater crustaceans including shrimp, crabs, and lobsters.
FAQ
How much ALGAEFIX should I add to my aquarium?
Add 1 ml for every 10 gallons or 5 ml for every 50 gallons of aquarium water.
How often should I repeat the dose during algae control?
Repeat the dose every three days until algae growth is under control.
Can I use ALGAEFIX with shrimp or crabs?
No, do not use ALGAEFIX with freshwater crustaceans such as shrimp, crabs, or lobsters.

Cameron Hughes –
I’ve used ALGAEFIX for two months now and it has significantly reduced algae buildup in my 55-gallon tank. The fish and plants seem unaffected. I added the recommended dose once every three days until the algae cleared, then switched to weekly doses. It’s a simple and effective solution.
Ryan Wallace –
Works well for green algae and hair algae. I followed the dosage instructions carefully and noticed a visible difference within a week. The only downside is it doesn’t eliminate all algae, just slows growth. Still, it saves me time on cleaning.
Alexandra Nash –
Great product for a beginner aquarist. I added 5 ml to my 50-gallon tank and repeated every three days. After a week, the algae stopped growing. Now I just use one dose per week. No harm to my fish or plants.