Freshwater treatment | Hobby pesca e acquari

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Freshwater treatment

91 products

The Freshwater Treatment section contains everything you need to make and keep your water safe, stable and crystal clear: water conditioners, bacterial activators, osmosis supplements, filter media, substrates, fertilizers, CO₂, purifiers, algaecides, snail solutions and medications/protective agents.

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Safe water: water conditioners neutralize chlorine and chloramines and bind heavy metals; bacterial activators initiate and support biological filtration (nitrogen cycle).

Stable parameters: with osmosis water, you replenish minerals and KH/GH in a controlled manner; filter media (mechanical, biological, chemical) maintain clarity and control values.

Healthy plants: substrates and substrate activators host beneficial bacteria and roots; liquid/tablet fertilizers and CO₂ support growth, colors, and algae prevention.

Cleaner and protected water: purifiers (carbon/resins/peat) refine the water; algaecides and snail trapping products help with management; medications and protective agents support fish during critical times.

Quick selection: filter by function (conditioning, bacteria, fertilization, CO₂, algaecide…), tank volume, and compatibility (planted aquarium, shrimp, community) to quickly find the right product.

Tip: establish a simple routine (water conditioner + bacteria during water changes, periodic testing, constant fertilization, and stable CO₂): the water will remain clear and plants stronger than algae.

— Tip from the Hobby Pesca & Acquari Team

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Replacement white sponge for new model Askoll Biovita filter.
Regular price €3,10
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Replacement sponge for Askoll Aqua Ranger 1 and Pure S filter - 2 pieces
13% Off
Regular price €3,30
Sale price €3,30
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Replacement activated carbon cartridge for Askoll Biovita SuperPower filter.FeaturesActivated carbon filter cartridge for chemical water filtration. Removes odors, coloring substances and other und...
29% Off
Regular price €4,80
Sale price €4,80
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Replacement white sponge compatible with Askoll Pratiko 100 external filters.Compatibility Old model Pratiko filter Pratiko New Generation filter Pratiko 3.0 Super Silent filter FeaturesFilter...
24% Off
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Askoll Phosphate Stop is a treatment that removes phosphates accumulated in the aquarium, which can cause algae growth.Key features Pack of 2 x 50g sachets Removes accumulated phosphates from the...
27% Off
Regular price €14,50
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Askoll Nitrate Stop is an anti-nitrate treatment for freshwater aquariums that selectively removes nitrates accumulated in the aquarium, which can be harmful to fish health. Main Features For fre...
62% Off
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Askoll Pure Filter Media Kit S is the maintenance kit for Askoll Pure S aquariums.Kit contents 1 sponge for mechanical filtration 1 activated carbon cartridge for chemical filtration 1 anti-nitr...
16% Off
Regular price €18,50
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Askoll Pure Filter Media Kit is what you need to keep your Askoll Pure and Askoll PURE LED M, L or XL aquariums always in optimal condition.Kit contents 1 sponge for mechanical filtration 1 activ...
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Askoll Adsorbor Mini quickly eliminates dyes, toxic substances, drug residues, and unpleasant odors from the water, thanks to its extraordinary specific porosity, exceeding 1000 m² per gram.Key Fea...
10% Off
Regular price €7,90
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Askoll Adsorbor quickly eliminates dyes, toxic substances, pharmacological residues, and bad odours from the water thanks to its extraordinary specific porosity, exceeding 1000 m² per gram.Key Feat...
16% Off
Regular price €63,00
Sale price €63,00
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Askoll ROBOFORMULA DISPENSER The automatic system that changes the way you experience your aquarium. Forever.Askoll ROBOFORMULA and Askoll FORMULA AZURE are the result of 2 years of research conduc...
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FLO'Synthetic filter flossPET (Polyethylene Terephthalate) fiber: biologically inert and insoluble in water, it does not release substances, removes coarse organic waste, and makes the water clear....
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PURE ZEOLITE Natural product for chemical filtrationHigh ion exchange capacity helps control ammonia and phosphate levels, combating the growth of many algal forms.Features: Natural mineral in gr...
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Sera Siporax Professional 15mm Maximum Optimization of Biological Filtration The original Sera Siporax Professional is suitable for use in freshwater aquariums, marine aquariums, and even ponds. Re...
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Sera Siporax Mini Professional Filter Material for Small Aquariums Highly effective filter material specifically for small aquariums, specifically designed for small filters in aquariums with a cap...
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35% Off Sold Out
Regular price €5,50
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Sera Ectopur Benefit in Case of Disease and Stress A mixture of oxygen-releasing salts, to be used in stress situations and to promote the effectiveness of medicinal treatments for external fish di...
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Synthetic resin for the removal of large quantities of phosphates and silicates in aquariums Oceanlife Phos Remover is a new generation nanoporous resin capable of removing large quantities of phos...
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Regular price €18,90
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Carbon source as food for bacteria, for the removal of NO3 and PO4 Ultra Carbon stimulates the reproduction of certain bacterial species to simultaneously and naturally reduce PO4 and NO3 values. T...