Tetra AlgoStop depot
Tetra AlgoStop depot* offers reliable, long‑term algae prevention for freshwater aquariums of 40 L or more by slowly releasing a high‑dose active ingredient over approximately four weeks. It attacks algae metabolism to prevent the growth of all algae species without colouring or clouding the water. Tetra AlgoStop depot* remains gentle on fish, plants and beneficial microorganisms when used as directed.
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12 tbl
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Detail
The long-lasting, high-dose active ingredient is released slowly and remains in the water for around 4 weeks
Suitable for all freshwater aquariums with fish, plants and microorganisms
More information
Tetra AlgoStop depot* offers reliable, long‑term algae prevention for freshwater aquariums of 40 L or more by slowly releasing a high‑dose active ingredient over approximately four weeks. It attacks algae metabolism to prevent the growth of all algae species without colouring or clouding the water. Tetra AlgoStop depot* remains gentle on fish, plants and beneficial microorganisms when used as directed. Keep the product away from direct sunlight, and during treatment switch off UV clarifiers, avoid activated carbon filtration and refrain from any water changes; ensure good aeration (for example with a Tetra APS air pump) and remove dead algae mechanically to maintain water quality. For application, simply add one tablet of Tetra AlgoStop depot* per 40 L of aquarium water directly into an area with plenty of water movement and repeat after four weeks if required. After treatment, you can prevent future outbreaks by reducing phosphate and nitrate with products such as Tetra EasyBalance, or tackle acute infestations with fast‑acting alternatives like Tetra AlguMin* or Tetra Algizit*.
Read more
FAQs
What is Tetra AlgoStop depot* and how does it work?
Tetra AlgoStop depot* is a long-term anti-algae treatment for freshwater aquaria of 40 L or larger. Each form-stable tablet releases a high-dose active ingredient very slowly over roughly four weeks, suppressing algae metabolism without stressing fish, plants or beneficial micro-organisms.
How quickly does Tetra AlgoStop depot* take effect?
The product starts releasing its active ingredient as soon as the tablet is placed in an area with good water movement. Because it is designed for gradual, sustained prevention, visible improvements appear progressively; the full dose is delivered after about four weeks.
Is Tetra AlgoStop depot* safe for fish and aquatic plants?
Yes. When the recommended dosage is followed, the depot formula is gentle on fish, plants and microorganisms and does not disturb biological filtration. Nevertheless, always monitor sensitive species during treatment.
Does Tetra AlgoStop depot* cloud or colour the water?
No. The tablets keep their shape, dissolve very slowly and leave no cloudiness or discolouration in the water.
How should I use Tetra AlgoStop depot* in my aquarium?
For algae prevention add 1 tablet per 40 L every four weeks. To control heavy infestations, use 1 tablet per 20 L, repeating after four weeks if necessary. During treatment switch off UV clarifiers, remove activated carbon, avoid water changes and ensure strong aeration; mechanically remove dead algae to protect water quality.
What types of algae does Tetra AlgoStop depot* target?
It combats and prevents green, brown and red algae, including stubborn filamentous and brush-algae varieties.
Can I use Tetra AlgoStop depot* together with other Tetra products?
Yes. It is compatible with conditioners such as Tetra AquaSafe or nutrient-reducers like Tetra EasyBalance. Do not run additional anti-algae remedies (e.g. Tetra AlguMin*, Tetra Algizit*) concurrently, as this may lead to overdosing. Wait several days and check water parameters with the Tetra Test 7in1 before starting another treatment.
How can I manage lighting and feeding to prevent algae?
Limit lighting to 8–10 hours per day and avoid direct sunlight to stop algae from overgrowing. Don’t overfeed your fish – leftover food increases nitrate and phosphate levels, which algae love. To control nutrients, use Tetra EasyBalance weekly; it helps reduce excess phosphate and nitrate that promote algae growth.
How do water changes and conditioners help keep algae under control?
Weekly water changes (20–30%) remove nutrients that feed algae. Between changes, Tetra EasyBalance keeps nitrate and phosphate low, preventing unwanted algae outbreaks.
What role do plants and tank cleaning play in algae prevention?
Healthy live plants absorb nutrients and outcompete algae. Remove dying leaves and vacuum waste during water changes. A clean tank with strong plant growth is less likely to develop algae.
How can I treat an algae outbreak safely?
Remove algae manually, then check lighting and feeding. For treatment, use the Tetra anti-algae range. Maintain good aeration and remove dead algae to protect water quality.
How do the individual products in the Tetra anti-algae range* differ from each other?
| Feature | Tetra AlguMin * | Tetra Algetten * | Tetra AlgoStop depot * | Tetra Algizit * |
| Primary Role | Rapid treatment | Long-term prevention (small tanks) | Long-term prevention (medium/large tanks) | Rapid cure for acute outbreaks |
| Form | Liquid | Slow-release tablet | Slow-release tablet | Fast-dissolving tablet |
| Recommended tank size | All sizes | Up to 40 L | ≥ 40L | All sizes |
| Dosage | 5 ml / 10 L (repeat after 14 days 1/2-dose) | 1 tablet / 10 L every 4-6 weeks | 1 tablet / 40 L (repeat after 4 weeks) | 1 tablet / 20 L (repeat after 2 weeks) |
| Action speed | Immediate | Gradual (4-6 weeks) | Gradual (≈ 4 weeks) | Immediate |
| Target algae | All common algae | Green & mild thread algae | All algae incl. thread/brush | Green, brown, red, brush/beard |
| Water discolouration | None | None | None | None |
| Combine with other products | ✔ Conditioners/fertilisers ✖ other algae meds | ✔ Conditioners/fertilisers ✖ other algae meds | ✔ Conditioners/fertilisers ✖ other algae meds | ✔ Conditioners/fertilisers ✖ other algae meds |
 
Tetra AlgoStop depot
Tetra AlgoStop depot* offers reliable, long‑term algae prevention for freshwater aquariums of 40 L or more by slowly releasing a high‑dose active ingredient over approximately four weeks. It attacks algae metabolism to prevent the growth of all algae species without colouring or clouding the water. Tetra AlgoStop depot* remains gentle on fish, plants and beneficial microorganisms when used as directed.
Filter
Available sizes
12 tbl
Buy Online
Detail
The long-lasting, high-dose active ingredient is released slowly and remains in the water for around 4 weeks
Suitable for all freshwater aquariums with fish, plants and microorganisms
More information
Tetra AlgoStop depot* offers reliable, long‑term algae prevention for freshwater aquariums of 40 L or more by slowly releasing a high‑dose active ingredient over approximately four weeks. It attacks algae metabolism to prevent the growth of all algae species without colouring or clouding the water. Tetra AlgoStop depot* remains gentle on fish, plants and beneficial microorganisms when used as directed. Keep the product away from direct sunlight, and during treatment switch off UV clarifiers, avoid activated carbon filtration and refrain from any water changes; ensure good aeration (for example with a Tetra APS air pump) and remove dead algae mechanically to maintain water quality. For application, simply add one tablet of Tetra AlgoStop depot* per 40 L of aquarium water directly into an area with plenty of water movement and repeat after four weeks if required. After treatment, you can prevent future outbreaks by reducing phosphate and nitrate with products such as Tetra EasyBalance, or tackle acute infestations with fast‑acting alternatives like Tetra AlguMin* or Tetra Algizit*.
Read more
FAQs
What is Tetra AlgoStop depot* and how does it work?
Tetra AlgoStop depot* is a long-term anti-algae treatment for freshwater aquaria of 40 L or larger. Each form-stable tablet releases a high-dose active ingredient very slowly over roughly four weeks, suppressing algae metabolism without stressing fish, plants or beneficial micro-organisms.
How quickly does Tetra AlgoStop depot* take effect?
The product starts releasing its active ingredient as soon as the tablet is placed in an area with good water movement. Because it is designed for gradual, sustained prevention, visible improvements appear progressively; the full dose is delivered after about four weeks.
Is Tetra AlgoStop depot* safe for fish and aquatic plants?
Yes. When the recommended dosage is followed, the depot formula is gentle on fish, plants and microorganisms and does not disturb biological filtration. Nevertheless, always monitor sensitive species during treatment.
Does Tetra AlgoStop depot* cloud or colour the water?
No. The tablets keep their shape, dissolve very slowly and leave no cloudiness or discolouration in the water.
How should I use Tetra AlgoStop depot* in my aquarium?
For algae prevention add 1 tablet per 40 L every four weeks. To control heavy infestations, use 1 tablet per 20 L, repeating after four weeks if necessary. During treatment switch off UV clarifiers, remove activated carbon, avoid water changes and ensure strong aeration; mechanically remove dead algae to protect water quality.
What types of algae does Tetra AlgoStop depot* target?
It combats and prevents green, brown and red algae, including stubborn filamentous and brush-algae varieties.
Can I use Tetra AlgoStop depot* together with other Tetra products?
Yes. It is compatible with conditioners such as Tetra AquaSafe or nutrient-reducers like Tetra EasyBalance. Do not run additional anti-algae remedies (e.g. Tetra AlguMin*, Tetra Algizit*) concurrently, as this may lead to overdosing. Wait several days and check water parameters with the Tetra Test 7in1 before starting another treatment.
How can I manage lighting and feeding to prevent algae?
Limit lighting to 8–10 hours per day and avoid direct sunlight to stop algae from overgrowing. Don’t overfeed your fish – leftover food increases nitrate and phosphate levels, which algae love. To control nutrients, use Tetra EasyBalance weekly; it helps reduce excess phosphate and nitrate that promote algae growth.
How do water changes and conditioners help keep algae under control?
Weekly water changes (20–30%) remove nutrients that feed algae. Between changes, Tetra EasyBalance keeps nitrate and phosphate low, preventing unwanted algae outbreaks.
What role do plants and tank cleaning play in algae prevention?
Healthy live plants absorb nutrients and outcompete algae. Remove dying leaves and vacuum waste during water changes. A clean tank with strong plant growth is less likely to develop algae.
How can I treat an algae outbreak safely?
Remove algae manually, then check lighting and feeding. For treatment, use the Tetra anti-algae range. Maintain good aeration and remove dead algae to protect water quality.
How do the individual products in the Tetra anti-algae range* differ from each other?
| Feature | Tetra AlguMin * | Tetra Algetten * | Tetra AlgoStop depot * | Tetra Algizit * |
| Primary Role | Rapid treatment | Long-term prevention (small tanks) | Long-term prevention (medium/large tanks) | Rapid cure for acute outbreaks |
| Form | Liquid | Slow-release tablet | Slow-release tablet | Fast-dissolving tablet |
| Recommended tank size | All sizes | Up to 40 L | ≥ 40L | All sizes |
| Dosage | 5 ml / 10 L (repeat after 14 days 1/2-dose) | 1 tablet / 10 L every 4-6 weeks | 1 tablet / 40 L (repeat after 4 weeks) | 1 tablet / 20 L (repeat after 2 weeks) |
| Action speed | Immediate | Gradual (4-6 weeks) | Gradual (≈ 4 weeks) | Immediate |
| Target algae | All common algae | Green & mild thread algae | All algae incl. thread/brush | Green, brown, red, brush/beard |
| Water discolouration | None | None | None | None |
| Combine with other products | ✔ Conditioners/fertilisers ✖ other algae meds | ✔ Conditioners/fertilisers ✖ other algae meds | ✔ Conditioners/fertilisers ✖ other algae meds | ✔ Conditioners/fertilisers ✖ other algae meds |
 
Do you have a question about the product?
Do you have a question about the product?
Do you have a question?
Your inquiry has been sent.