Pack size
3.78 L
Cost per litre
Under 1c
Water type
Pond
API Pond Care Simply Clear 3.78ltr
Turns murky pond water clear, and treats what's causing it. API Pond Simply Clear combines a fast-acting clarifier with beneficial bacteria – the clarifier clumps suspended particles so your filter can catch them, while the bacteria digest the organic waste behind the cloudiness. This 3.78 L bottle is a season's supply for most ponds, at under 1c per litre of pond water treated at the standard dose.
Key features
- Two-part action – a clarifier clumps fine suspended particles into filterable clumps, while beneficial bacteria digest the organic waste causing the cloudiness underneath.
- Under 1c per litre of pond water at the standard dosing rate – 3.78 L treats roughly 59,600 L across a season.
- Safe for pond fish, plants, wildlife and pets when used as directed.
- Formulated for freshwater ponds.
Ingredients
API's consumer label describes Simply Clear as a super-concentrated blend of beneficial bacteria plus a clarifying agent, without naming the specific bacterial strains or the clarifier's active agent. Flagged as unverified – contact API directly if this detail matters for your setup.
Specifications
| Brand | API (Mars Fishcare) |
|---|---|
| Bottle size | 3.78 L (1 US gal) |
| Use in | Ornamental ponds |
| Water type | Freshwater |
| Initial/seasonal dose | 60 mL per 946 L (250 US gal), twice weekly for 2 weeks |
| Maintenance dose | 30 mL per 946 L (250 US gal), every 2 weeks |
| One bottle treats (initial dose basis) | Approximately 59,600 L |
| Cost per litre treated | Under 1c per litre |
| Freight | Standard |
Dosage and directions
- Initial dose: 60 mL (4 tbsp) per 946 L (250 US gal), twice weekly for 2 weeks – typically at spring start-up and season end.
- Maintenance dose: 30 mL (2 tbsp) per 946 L (250 US gal), every 2 weeks.
- Shake well before use.
- Rinse or clean pond filter media regularly while dosing – the clumped particles need to be physically caught and removed, or they simply redisperse back into the water.
Suitable for, and not suitable for
Suitable for:
- Cloudy pond water caused by suspended particles and organic waste
Not suitable for:
- Green water caused by living algae – that's an algaecide's job; see API Pond AlgaeFix
- Sludge already settled on the pond floor in otherwise clear water – Simply Clear targets what's suspended in the water column, not what's settled; see API Pond EcoFix for that
Care and maintenance
Rinse or clean filter media regularly through the dosing period so the clumped particles are actually removed from the system, not just recirculated.
Safety and handling
- Keep out of reach of children.
- Shake well before use; store as directed on the label.
Goes well with
- API Pond AlgaeFix – if the cloudiness is green water from living algae rather than suspended particles.
- API Pond EcoFix – for sludge that's already settled on the pond floor.
Warranty and delivery
This is a consumable pond treatment, so no manufacturer warranty period applies. That doesn't affect your rights under the Australian Consumer Law – if the product is faulty, unsafe or not as described, you're entitled to a remedy. Ships as standard freight.
Common questions
What's the difference between Simply Clear and AlgaeFix?
Simply Clear treats cloudiness from suspended particles and organic waste with a clarifier and bacteria; it does not kill living algae. If the water is green from algae growth, use AlgaeFix instead.
What's the difference between Simply Clear and EcoFix?
Simply Clear targets what's suspended in the water column. EcoFix targets sludge that's already settled on the pond floor. Ponds with both problems often use both products.
Do I need to do anything else while dosing?
Yes – rinse or clean filter media regularly. The clarifier only clumps particles; your filter has to catch and remove them or they'll redisperse.
Is it safe with fish and plants?
Yes, when dosed as directed.
How long before the water clears?
API's directions call for twice-weekly dosing for two weeks initially. Most ponds show visible improvement within that window, then move to fortnightly maintenance dosing.




