Tetra AquaSafe, 5 l is a conditioner for preparing tap water for an aquarium. According to the description, it makes water safe for fish: it instantly neutralises chlorine, chloramine, copper, zinc and lead, protects fish gills and mucous membranes and enriches the water with useful components. A vitamin B complex reduces stress, iodine and magnesium support vitality and growth, and the conditioner promotes beneficial bacteria. It dissolves quickly, starts working within seconds and suits freshwater and marine aquariums. The dose is 5 ml per 10 l of water, so the 5 l canister treats 10,000 l.
Key specifications
| Parameter | Value |
|---|---|
| Type | tap water conditioner |
| Neutralises | chlorine, chloramine, copper, zinc, lead |
| Additives | B vitamins, iodine, magnesium |
| Dose | 5 ml per 10 l of water |
| Treats | 10,000 l |
| Aquariums | freshwater and marine |
| Volume | 5 l |
Pros
- Neutralises chlorine and chloramine. The main danger of tap water for fish.
- Binds heavy metals. Copper, zinc and lead.
- Protects gills and mucous membranes.
- Works in seconds. Water can go in almost straight away.
- Fresh and marine water.
- Very economical size. 5 l treats 10,000 l.
Cons and what to watch
- No ingredients. The active substances are not listed.
- Chloramine and ammonia. Breaking down chloramine releases ammonia, so a working biofilter is needed.
- 5 l is a lot for home use. It is a size for large tanks, ponds and shops.
- No shelf life after opening.
- "Cleans the water" is vague. A conditioner does not replace a filter or water changes.
How to dose
Add 5 ml of conditioner for every 10 l of fresh tap water, both when first setting up the tank and at every water change. It is easiest to add it to the container of new water before pouring, or straight into the tank when topping up, dosing for the volume of new water rather than the whole tank. For example, a 20 l change needs 10 ml. A measuring cup or syringe helps when dosing from a large canister.
Who needs a 5 l canister
For a 50–100 l tank with weekly 20–30% water changes, the canister will last for years. This size pays off for owners of large or several tanks, ponds and pet shops. For a small home aquarium a smaller bottle is handier, such as Rikka Quick Start in 100 ml.
Setting up a tank
When setting up a new tank, the conditioner is step one. Then the filter needs to be colonised with beneficial bacteria, helped by products such as Tetra Bactozym. Fish are added gradually while monitoring ammonia and nitrite with a test such as Tetra Test 6in1. More in aquarium for beginners: what to buy and how to set it up.
Chloramine: what to know
Some cities disinfect water with chloramine. The conditioner breaks it down, but ammonium remains in the water, which filter bacteria process in a mature tank. So in a newly set-up tank it is best not to make large water changes with chloraminated water without testing.
Water stability
A conditioner prepares water but does not stabilise hardness or pH. Other products are used to maintain parameters, such as Rikka Aqua Balance. Regular water changes remain the basis of care.
Ponds
Thanks to its size, the canister is also handy for a garden pond: when topping up with tap water, the conditioner protects fish from chlorine. The dose is the same, 5 ml per 10 l of added water. Pond fish such as koi need dedicated food such as JBL ProPond All Seasons.
Storage
Keep the canister tightly closed in a cool, dark place out of reach of children. Do not let it freeze. Never decant the conditioner into drinks bottles.
Who it suits
Tetra AquaSafe 5 l suits owners of large or several aquariums, ponds and shops that need a tap water conditioner in an economical size. Other products are in the fish medicines and water care section.
Verdict
Tetra AquaSafe 5 l is a conditioner that neutralises chlorine, chloramine and heavy metals, protects fish gills and mucous membranes, contains B vitamins, iodine and magnesium and suits fresh and marine water, with one canister treating 10,000 l. The downsides are undisclosed ingredients, the need for a working biofilter after chloramine breakdown, no shelf life after opening, and 5 l is more than a small tank needs.
FAQ
What is the dose?
5 ml per 10 l of water.
How much water does it treat?
10,000 l.
What does it neutralise?
Chlorine, chloramine, copper, zinc and lead.
Is it suitable for marine tanks?
Yes.
How fast does it work?
Within seconds.
Is it needed at every water change?
Yes, dosed for the volume of new water.
Can it be used in a pond?
Yes, at the same dose.
