AQUATIC SNAIL TREATMENT

GASTROPEX

GASTROPEX effectively combats aquatic snails in your aquarium. Use GASTROPEX to stop snails destroying aquatic plants and transmitting disease to your fish. In addition, GASTROPEX clears cloudy water caused by bacterial blooms and also combats ‘hydra’. GASTROPEX is safe to use with freshwater tropical and coldwater fish and plants. Another advantage is that unlike many other treatments, no water change is required after use of GASTROPEX.

THAT'S NOT ALL

PRODUCT FEATURES

GASTROPEX
WATCH FOR THESE

SYMPTOMS

PHYSELLA ACUTA

RED-RIMMED MELANIA (MELANOIDES TUBERCULATA)

GREAT POND SNAIL (LYMNAEA STAGNALIS)

LAKE LIMPET (ACROLOXUS LACUSTRIS)

GREAT RAMSHORN (PLANORBARIUS CORNEUS)

QUESTIONS?

FREQUENTLY ASKED QUESTIONS

Our products are designed to be simple, safe & easy to use, but if you have questions, please do not hesitate to contact us. But before you do, please check our Frequently Asked Questions below to see if your question has already been answered.

  • Contains copper, do not overdose!
  • Always read the leaflet before use;
  • This product may stain if spilt;
  • Keep out of reach of children and pets;
  • Do not use with animals that are intended for consumption;
  • Store bottle and leaflet in original packaging;
  • For use in freshwater aquariums only;
  • Keep away from cuts, eyes and other sensitive areas;
  • This information is general product information, not to be mistaken for the instruction leaflet. No rights can be derived from this F.A.Q.!

If snails can be seen in the aquarium, on the glass or in the gravel, then GASTROPEX should be used. Snails are relatively common in aquariums and in small quantities pose few problems. However, they pollute water and become a serious nuisance, so take action sooner rather than later. When you have a snail epidemic, removing them by hand again and again becomes a time-consuming chore. Total removal of all snails is nearly impossible and usually the epidemic returns. Use GASTROPEX to eliminate all aquatic snails including those hidden in the sand, gravel, plants and decorations.

Snail epidemic
It is strongly advised to remove as many snails as you can by hand before or just after the treatment. If there is a very large snail die-off, the dead snails will rot and pollute the aquarium water. This in turn may harm your fish and plants. Syphoning your gravel to remove the dead snails buried in it is also advisable (for example, the Malayan live-bearing snail abounds in substrate).

  • GASTROPEX eliminates snails from the aquarium.
  • You can use GASTROPEX in tropical and coldwater aquariums.


Snails are not essential for maintaining a healthy aquarium, although some people like to keep them as an ornamental feature. However, snails can transmit diseases to your fish, as they are hosts for a range of parasites. They consume and ruin aquatic plants and can look unsightly. In addition, they reproduce at an alarming rate and can take over your aquarium in a short period of time. Large quantities of decomposing snail waste pollutes the water, which is bad for your fish and plants. In aquariums which are used for breeding, snails pose a problem as they eat fish eggs.

  • You can use GASTROPEX to eliminate snails in freshwater aquariums.
  • Remove as many snails as possible from the aquarium before treatment!

Filtering
You may continue to filter over non-adsorbing materials such as filter-wool, sand, gravel, etc. Always remove chemical ‘active’ filter media such as (fresh) activated carbon, UV (lights), oxidisers, resins and protein skimmers, as these can have a negative influence on the action of GASTROPEX. Keep filters running day and night. After using GASTROPEX it is advisable to install a newly grafted filter in your aquarium.

Overdosing
Do not overdose GASTROPEX! Please follow the dosing instructions carefully!

Other treatments (from other manufacturers)
Never combine treatments unless the manufacturer specifically states that it is safe to do so. If you wish to use another treatment straight after using GASTROPEX, you can remove all GASTROPEX components by filtering over fresh active carbon. If you experience many problems at once (such as fish disease, algae and snails in the same aquarium), treat the most severe problem first as opposed to treating all three simultaneously.

It is generally not necessary to do a water change before using GASTROPEX. However, there are a few exceptions where a partial water change should be carried out before treating the aquarium:

  1. In the case of poor water quality. Regular testing with eSHa AQUA-QUICK-TEST can identify water quality problems in time to take corrective action when needed;
  2. If you are close to your regular water change;
  3. If using any waterconditioners (see general questions: how can I safely add tap water when doing a water change, without adding (too much) water conditioner?);
  4. If you have just used or are using another treatment: 2 x 40% water changes should be carried out over a period of two days + appropriate filtering (i.e. carbon).


Replacing some of the water during or after treatment effectively removes some of the treatment. Compensate by adding a proportional amount of medication after a water change.

  1. To treat snails, hydra, bacterial blooms and other infusoria related blooms, use a standard 3 day dose of GASTROPEX. Calculate the volume of your aquarium (only the area occupied by water). You can use the Dosage Calculator to calculate the correct dosage.
  2. Add drops of GASTROPEX to your aquarium by holding the bottle upside down and squeezing the pipette (20 drops = 1 ml).

After an illness we strongly recommend that you give your fish a daily dose of eSHa OPTIMA, to keep them in good health. eSHa OPTIMA is a unique combination of the essential components found in tropical rivers, lakes and streams. These components are blended with trace elements, minerals, vitamins and natural growth enhancers to give your fish what they are accustomed to in their natural environment. eSHa OPTIMA stimulates and supports the natural immune defences and speeds up full recovery from illness. 

We do not recommend using other eSHa products while using GASTROPEX.

Yes! GASTROPEX has several other uses:

  • Combats infusoria blooms;
  • Clears cloudy water caused by bacterial blooms (common in new aquarium setups): bacterial blooms can be dangerous to fish (high levels of organic pollution);
  • Combats Hydra: freshwater Hydra anchor to any submerged surface in your aquarium and can rapidly regenerate to epidemic proportions. Hydra pose a threat to small fish and fry and can appear unsightly. They are recognisable by the stalk (anchor) and several tentacles (to catch prey by stinging). Hydra can grow up to two centimetres in length, but are capable of contracting themselves.

You may notice a flake-like sediment forming in your bottle of GASTROPEX. This can form under certain conditions, because GASTROPEX contains no artificial preservatives. The sediment is a natural compound, is totally harmless and will not affect the performance of GASTROPEX. The sediment dissolves harmlessly in you aquarium.

CALCULATE IT YOURSELF

DOSAGE CALCULATOR

This dosage calculator is a tool to calculate the standard dosage for normal aquariums. Although this calculator is carefully put together, we strongly advise to read the product instructions and leaflet carefully.

EXACT DOSAGES

DOSAGE CALCULATOR

Refer to the RESULTS to get your dosage plan. Please read the leaflet, instructions and exceptions before using your chosen product!
YOUR DOSAGE PLAN
RESULTS
* ATTENTION: BE AWARE!

In case you do not have a normal aquarium, you have to adjust the dosage accordingly. For example, if you have large amounts of rocks, stones or other deco material, the dosage needs to be decreased. If you have an oversized external filter the dosage needs to be increased.

ATTENTION:

Your aquarium is smaller than 30 liters, this is smaller than the average aquarium, please check your parameters. If your parameters are correct, you can continue calculating your dosage.

ATTENTION:

Your aquarium is larger than 300 liters, this is larger than the average aquarium, please check your parameters. If your parameters are correct, you can continue calculating your dosage.

Chosen product:
Example
Aquarium volume (litres):
Example
SAFE TO USE WITH

PRODUCT COMPATIBILITY LIST

We often get questions if our products are safe to use with certain types of animals. After testing our products carefully, we have put together an overview that shows which product are safe to use with your beloved aquarium creatures.

Swipe left to see more options..

PRODUCT SHRIMP SNAILS / MUSSELS FROGS CORALS AXOLOTLS

eSHa 2000

Yes ¹

No

Yes

N/A

-

EXIT

Yes

Yes

Yes

N/A

-

GASTROPEX

Yes ¹

No

Yes

N/A

-

HEXAMITA

Yes ¹

No

Yes

N/A

-

PRO-PHYLL

Yes

Yes

Yes

N/A

-

eSHa OPTIMA

Yes

Yes

Yes

N/A

-

PROTALON

707 / 7.0.7 / 727

Yes ¹

No

Yes

N/A

-

GOLDY

No

No

Yes

N/A

-

TORTUFIT

No

No

Yes

N/A

-

eSHa gdex

Yes

Yes ²

Yes

?

-

eSHa -ndx

Yes

Yes ²

Yes

?

-

eSHa alx

No

?

Yes

?

-

CRYPTO-PLUS

Yes

Yes

Yes

N/A

-

TRIMARIN

No

No

N/A

No

-

OODINEX

Yes

No

N/A

Yes

-

MINAROLL

Yes

Yes

Yes

Yes

-

INFORMATION

DOWNLOADS

SAFE TO USE WITH

FISH DISEASES

TREATMENT PLAN