APT FIXLITE

2HR Aquarist APT FIXLITE – Gentle Algae Treatment for Delicate Plants

APT FIXLITE is a gentle algaecide built for the plants that can't handle APT FIX's stronger formula: mosses, liverworts (Riccardia, Riccia), Vallisneria, and other sensitive or hybrid aquatic species. It clears cyanobacteria and algae growing on or near these delicate plants without damaging the plants themselves.

What Makes APT FIXLITE Different

The active ingredient is 2.5% carboxylic acids, which inhibit cellular processes in algae while leaving higher plants largely unharmed thanks to their thicker cuticle layer. That's the key distinction from stronger algaecides like APT FIX, which use epoxy aldehydes at a concentration that mosses and Vallisneria can't tolerate well.

Like the rest of the APT range, it fully biodegrades within 12–24 hours and doesn't accumulate in your aquarium ecosystem, so repeated spot-dosing doesn't build up residue over time.

Key Benefits

• Safe for use on and around mosses, liverworts, Vallisneria, and other delicate species
• Targets cyanobacteria (BGA) and algae growing on sensitive plants
• Fully biodegrades within 12–24 hours, leaving no residue buildup
• Includes a precision spot-dosing pipette for targeted application
• Safe for fish, shrimp, and beneficial bacteria at recommended doses

Technical Specifications

• Active ingredient: 2.5% carboxylic acids
• Form: Liquid
• Dosage: 1 ml per 10 litres, daily
• Biodegradation: Complete within 12–24 hours
• Safe for: Fish, shrimp, and beneficial bacteria at recommended dosage
• Includes: Precision spot-dosing pipette

Who Should Use APT FIXLITE

• Aquariums with mosses (Java moss and similar), liverworts, or Vallisneria affected by algae
• Tanks with cyanobacteria (BGA) growing near sensitive or hybrid plant species
• Aquascapers who want a gentler spot treatment than APT FIX for delicate plantings

APT FIXLITE is not the right tool for black beard algae or filamentous algae on hardscape — for those, APT FIX's stronger 3% epoxy aldehyde formula is more effective. Use FIXLITE specifically where the affected plants can't tolerate that stronger dose.

How to Apply

1. Pause the filter before dosing
2. Spot-dose directly onto affected areas with the included pipette — 1 ml per 10 litres, daily
3. Repeat daily as needed until the algae clears
4. Use within 1 year of opening

Expert Tip

If you're treating algae across a tank that has both hardscape and sensitive plants, it's worth using both products strategically: APT FIX for algae on rocks, wood, and hardier plants, and APT FIXLITE specifically around moss, liverworts, and Vallisneria. That split gets full coverage without risking the plants that can't handle the stronger formula.

Frequently Asked Questions

Can I use APT FIXLITE on moss and Vallisneria?

Yes — it's specifically formulated to be gentle on mosses, liverworts, Vallisneria, and other sensitive species that APT FIX can damage.

What algae does APT FIXLITE treat?

It's effective against cyanobacteria (BGA) and algae growing on or near delicate plants. It's not intended for black beard algae or filamentous algae on hardscape.

What's the difference between APT FIXLITE and APT FIX?

APT FIXLITE uses a gentler 2.5% carboxylic acid formula safe for delicate plants. APT FIX uses a stronger 3% epoxy aldehyde formula for tougher algae like BBA, but isn't safe for mosses or Vallisneria.

Is APT FIXLITE safe for shrimp?

Yes, at the recommended dose of 1 ml per 10 litres.

Does APT FIXLITE leave residue in the tank?

No. It fully biodegrades within 12–24 hours and doesn't accumulate with repeated use.

Pairs Well With

• APT FIX – for stronger algae like BBA on hardscape or hardier plants
• APT 3 or APT 1 – to restore nutritional balance after treatment
• APT Pure – water conditioner for water changes after dosing