Rikka Aqua Balance, 100 ml is a conditioner from the Ukrainian maker Rikka for stabilising water chemistry and maintaining the biological balance in an aquarium. Special biodegradable polymers feed beneficial microorganisms that lower nitrate and phosphate levels and help prevent unwanted algae. It also contains vitamins and trace elements. According to the manufacturer, with weekly use you can go without changing the water for up to 6 months.
How the biological balance works
In an aquarium, fish waste and leftover food turn first into ammonia, then into nitrites and nitrates. Nitrifying bacteria in the filter and substrate handle the first two steps, while nitrates and phosphates gradually build up. They're usually removed through water changes and plants. Aqua Balance feeds beneficial microorganisms that consume nitrates and phosphates, so their levels rise more slowly and algae have less to feed on. How an aquarium works is covered in an aquarium for beginners: what to buy.
Key specs
| Parameter | Value |
|---|---|
| Purpose | stabilising water chemistry and biological balance |
| Action | feeds bacteria, lowers nitrates and phosphates |
| Also contains | vitamins and trace elements |
| Dosage | 2.5 ml per 10 l weekly |
| Requirement | strong aeration |
| Shelf life | 24 months |
| Volume | 100 ml |
Pros
- Fewer nitrates and phosphates. Beneficial bacteria get fed.
- Algae prevention. Fewer nutrients for algae.
- Stable water. Fewer sudden swings in parameters.
- Vitamins and trace elements. Extra support for the tank's inhabitants.
- A simple routine. One dose a week.
- A Ukrainian maker. An affordable price.
Cons
- Needs strong aeration. The bacteria use a lot of oxygen.
- The "no water changes" promise needs checking. Relying on it without nitrate tests is risky.
- Usage in big tanks. 100 ml lasts a 40 l tank about 10 weeks.
- No ingredient list. The polymers and trace elements aren't specified.
How to use
Shake the bottle vigorously before use. Add 2.5 ml per 10 l of tank water every week. Make sure there's strong aeration during use — an air pump or a filter that draws in air. According to the manufacturer, this routine lets you skip water changes for up to 6 months; after that, replace at least 40% of the water and vacuum the substrate thoroughly. We still recommend testing nitrates, nitrites and pH every 1–2 weeks: if the readings rise, do a water change rather than waiting six months.
Signs the balance is off
The first signs are cloudy water, a bad smell, algae coating the glass and rocks, and sluggish fish gasping at the surface. Tests will pinpoint the cause: any nitrite points to a filter problem, and nitrates above 40–50 mg/l mean waste is building up. In these cases the conditioner is no substitute for an urgent 30–50% water change and a substrate clean. Once the readings are back to normal, you can continue weekly doses of Aqua Balance to keep things stable.
How to help the tank's balance
Don't overstock or overfeed — more in aquarium fish food: how to feed. Live plants use up nitrates and compete with algae. When setting up a new tank, seed the filter with beneficial bacteria such as Rikka AKVA START, and if the water turns cloudy, use Rikka Clear Water. Don't use the conditioner while treating fish, as many medicines suppress bacteria.
Who it suits
Freshwater aquarium owners who want to stabilise their water, lower nitrates and phosphates and fight algae less often. More products are in the fish medicines and water care section.
Verdict
Rikka Aqua Balance is a conditioner that feeds beneficial bacteria, lowers nitrates and phosphates and helps keep the water stable. It has a simple weekly routine and an affordable price. But the promise of going six months without water changes should be checked with tests, and aeration during use is a must.
FAQ
What's the dosage?
2.5 ml per 10 l of water once a week.
Can I stop changing water altogether?
The manufacturer mentions up to 6 months, but it's best to monitor the water with tests.
Why is aeration needed?
The beneficial bacteria use a lot of oxygen.
Does it help with algae?
It lowers the nitrates and phosphates that algae feed on.
What should I do after 6 months?
Replace at least 40% of the water and vacuum the substrate thoroughly.
Should I shake it?
Yes, vigorously before each use.
How long does it keep?
24 months.
