Accessories
Accessories
Plant Fertilizer IconPlant FertilizerCleaning IconCleaningSubstrate IconSubstrateSilicone IconSilicone
Filter
€
 
€
Brands
Variant
Width
Color
Weight in kg
Contents
Package Contents
Sorting
Sorting
20% Discount
Arka Resin-Pure 4L

Arka

Arka Resin-Pure 4L
31.95 €
(7.99 € / l)
EIA 39.90 €
20% Discount
Arka PH/TDS/EC Meter

Arka

Arka PH/TDS/EC Meter
31.95 € EIA 39.90 €
7% Discount
Oase Digital Thermometer

Oase

Oase Digital Thermometer
13.95 € EIA 14.95 €
20% Discount
Arka Special Blend 473 ml

Arka

Arka Special Blend 473 ml
19.95 €
(42,177.59 € / l)
EIA 24.90 €
17% Discount
Arka Nite-Out II 473 ml

Arka

Arka Nite-Out II 473 ml
13.95 €
(29,492.60 € / l)
EIA 16.90 €
29% Discount
JBL Aquarium Thermometer

JBL

JBL Aquarium Thermometer
1.95 € EIA 2.75 €
Aquarium Hose 12/16 mm (1 m)

JBL

Aquarium Hose 12/16 mm (1 m)
1.99 €
Gray Aquarium Hose, 16/22 mm (1 m)

JBL

Gray Aquarium Hose, 16/22 mm (1 m)
3.49 €
20% Discount
Arka Algaway

Arka

Arka Algaway - 473 ml
11.95 €
(25.26 € / l)
EIA 14.90 €
20% Discount
Arka Phos-Out4 473 ml

Arka

Arka Phos-Out4 473 ml
15.95 €
(33,720.93 € / l)
EIA 19.90 €
19% Discount
Arka Special Blend 251 ml

Arka

Arka Special Blend 251 ml
12.95 €
(51,593.63 € / l)
EIA 15.90 €
10% Discount
Oase KickstartFilter Start Bacteria Tablet

Oase

Oase KickstartFilter Start Bacteria Tablet
6.95 €
(2.32 € / Stück)
EIA 7.75 €
13% Discount
Red Sea Reef-Spec Activated Carbon 100g

Red Sea

Red Sea Reef-Spec Activated Carbon 100g
6.95 € EIA 7.99 €
23% Discount
Arka Plants Fe

Arka

Arka Plants Fe - 473 ml
9.95 €
(21.04 € / l)
EIA 12.90 €
9% Discount
Oase AquaElements Vitamins and Trace Elements

Oase

Oase AquaElements Vitamins and Trace Elements - 500 ml for 6,000 liters
20.95 €
(41.90 € / l)
EIA 22.95 €
23% Discount
Arka Xtreme Water Purifier 473 ml

Arka

Arka Xtreme Water Purifier 473 ml
9.95 €
(21.17 € / l)
EIA 12.90 €
17% Discount
Arka Substrate Cleaner 473 ml

Arka

Arka Substrate Cleaner 473 ml
13.95 €
(29,492.60 € / l)
EIA 16.90 €
16% Discount
Arka Multifunction Pipette

Arka

Arka Multifunction Pipette
9.95 € EIA 11.90 €
34% Discount
Hobby Zeolite

Hobby

Hobby Zeolite - 1000 g, 5–8 mm
4.95 €
(4.95 € / kg)
EIA 7.49 €
20% Discount
Arka NOPO Nitrate-Phosphate Test

Arka

Arka NOPO Nitrate-Phosphate Test
11.95 €
(25.43 € / l)
EIA 14.90 €
0% Discount
Oase Fish Net, 15 cm

Oase

Oase Fish Net, 15 cm
2.95 € EIA 2.95 €
31% Discount
Hobby Mulmglocke

Hobby

Hobby Mulmglocke
4.95 € EIA 7.19 €
9% Discount
Oase FishGuard

Oase

Oase FishGuard
49.95 € EIA 54.95 €
10% Discount
Oase Magnetic Windshield Cleaner, 10 mm

Oase

Oase Magnetic Windshield Cleaner, 10 mm
18.95 € EIA 20.95 €
14% Discount
Oase Replacement Head Set for Aquarium Window Cleaner

Oase

Oase Replacement Head Set for Aquarium Window Cleaner
5.95 € EIA 6.95 €
Aquarium Hose 9/12 mm (1 m)

JBL

Aquarium Hose 9/12 mm (1 m)
1.49 €
11% Discount
Oase LessStress Water Purifier

Oase

Oase LessStress Water Purifier - 500 ml for 2,000 liters
11.95 €
(23.90 € / l)
EIA 13.45 €
21% Discount
Oase Fish Net, 20 cm

Oase

Oase Fish Net, 20 cm
2.95 € EIA 3.75 €
23% Discount
Arka Plants K

Arka

Arka Plants K - 473 ml
9.95 €
(21.04 € / l)
EIA 12.90 €
20% Discount
Arka THERA P 473 ml

Arka

Arka THERA P 473 ml
15.95 €
(33,720.93 € / l)
EIA 19.90 €
9% Discount
Oase PlantGrow Weekly Fertilizer

Oase

Oase PlantGrow Weekly Fertilizer - 500 ml for 5,000 liters
20.95 €
(41.90 € / l)
EIA 22.95 €
23% Discount
Arka Bio - CO2

Arka

Arka Bio - CO2 - 473 ml
9.95 €
(21.04 € / l)
EIA 12.90 €
20% Discount
Arka Aqua Balance 473 ml

Arka

Arka Aqua Balance 473 ml
11.95 €
(25,264.27 € / l)
EIA 14.90 €
20% Discount
Aqua Rebell GH Boost N

Aqua Rebell

Aqua Rebell GH Boost N - 500 ml
11.95 €
(23.90 € / l)
EIA 14.90 €
18% Discount
Aqua Rebell NPK

Aqua Rebell

Aqua Rebell NPK - 1000 ml
17.95 €
(17.95 € / l)
EIA 21.90 €
20% Discount
Arka Gel Filter Filter Starter 473 ml

Arka

Arka Gel Filter Filter Starter 473 ml
11.95 €
(25,264.27 € / l)
EIA 14.90 €
22% Discount
JBL Mini Aquarium Thermometer

JBL

JBL Mini Aquarium Thermometer
1.95 € EIA 2.49 €
23% Discount
Arka Plants Green

Arka

Arka Plants Green - 473 ml
9.95 €
(21.04 € / l)
EIA 12.90 €
9% Discount
Oase LessStress Water Purifier

Oase

Oase LessStress Water Purifier - 100 ml for 400 liters
4.95 €
(49.50 € / l)
EIA 5.45 €
24% Discount
JBL BioNitrat Ex Aquarium Nitrate Remover

JBL

JBL BioNitrat Ex Aquarium Nitrate Remover
20.95 €
(209.50 € / l)
EIA 27.45 €
22% Discount
JBL Floaty II L

JBL

JBL Floaty II L
36.95 € EIA 47.49 €
23% Discount
JBL Algae Magnet M

JBL

JBL Algae Magnet M
7.95 € EIA 10.29 €
26% Discount
JBL Klingen-Aqua-T Cell Phone

JBL

JBL Klingen-Aqua-T Cell Phone
7.95 € EIA 10.79 €
23% Discount
Arka Plants N

Arka

Arka Plants N - 473 ml
9.95 €
(21.04 € / l)
EIA 12.90 €
-5% Discount
Oase Fish Net, 8 cm

Oase

Oase Fish Net, 8 cm
1.95 € EIA 1.85 €
9% Discount
Oase BoostMix Clear Water Bacteria

Oase

Oase BoostMix Clear Water Bacteria - 250 g for 2,500 liters
15.95 €
(63.80 € / kg)
EIA 17.45 €
20% Discount
Arka Herbtana Immune Booster P 473 ml

Arka

Arka Herbtana Immune Booster P 473 ml
15.95 €
(33,720.93 € / l)
EIA 19.90 €
10% Discount
Oase PlantGrow Weekly Fertilizer

Oase

Oase PlantGrow Weekly Fertilizer - 100 ml per 1,000 liters
6.95 €
(69.50 € / l)
EIA 7.75 €
22% Discount
JBL SilikatEx Rapid 400g

JBL

JBL SilikatEx Rapid 400g
20.95 € EIA 26.95 €
7% Discount
Oase PlantGrow Weekly Fertilizer

Oase

Oase PlantGrow Weekly Fertilizer - 250 ml for 2,500 liters
12.95 €
(51.80 € / l)
EIA 13.95 €
9% Discount
Triton Activated Carbon 1 L

Triton

Triton Activated Carbon 1 L
20.95 € EIA 22.99 €
20% Discount
Phos-Out 4 1000 ml

Arka

Phos-Out 4 1000 ml
15.95 €
(15,950.00 € / l)
EIA 19.90 €
18% Discount
Aqua Rebell Phosphate 1 L

Aqua Rebell

Aqua Rebell Phosphate 1 L
17.95 €
(17.95 € / l)
EIA 21.90 €
10% Discount
Oase Scaperline Soil, Brown, 9 liters

Oase

Oase Scaperline Soil, Brown, 9 liters
37.95 €
(4.22 € / l)
EIA 41.95 €
22% Discount
JBL Algae Magnet L

JBL

JBL Algae Magnet L
14.95 € EIA 19.29 €
24% Discount
JBL Premium Aquarium Thermometer

JBL

JBL Premium Aquarium Thermometer
4.95 € EIA 6.49 €
11% Discount
Oase KickBoost Clear Water Bacteria

Oase

Oase KickBoost Clear Water Bacteria
3.95 €
(131.67 € / l)
EIA 4.45 €
11% Discount
Oase PlantGrow Daily Fertilizer

Oase

Oase PlantGrow Daily Fertilizer - 250 ml for 5,000 liters
11.95 €
(47.80 € / l)
EIA 13.45 €
23% Discount
Arka Plants NPK

Arka

Arka Plants NPK 473 ml
9.95 €
(21.04 € / l)
EIA 12.90 €
20% Discount
Arka THERA P 251 ml

Arka

Arka THERA P 251 ml
11.95 €
(47,609.56 € / l)
EIA 14.90 €
Page 1 by 5
Secure Payment

Secure, fast payment

Installment payments up to €10,000

Installment payments up to €10,000

Free Returns

Free Returns

Over 20 Years of Expertise

Over 20 Years of Expertise

Shop for Freshwater Aquarium Supplies & Aquatics Accessories at Petonus

Discover aquarium supplies online and set up your aquarium perfectly

  1. 1.
    Accessories for a well-maintained freshwater aquarium
  2. 2.
    Buy Aquarium Accessories Online at Petonus
Author: Kevin Schwabe

Aquarium supplies are the foundation of a stable and healthy freshwater aquarium. With the right supplies, you can keep your tank clean, promote plant growth, and ensure the well-being of your fish. At Petonus, you’ll find high-quality aquarium supplies for both beginners and experienced aquarists.

 

Your Benefits at Petonus
  • Comprehensive selection of freshwater aquarium accessories
  • High-quality materials for care, maintenance, and setup
  • Products suitable for both small and large aquariums
  • Personalized advice online and at our specialty store in Jena
  • Accessories from well-known manufacturers such as Juwel, JBL, and Oase

 

Accessories for a well-maintained freshwater aquarium

A well-equipped aquarium needs the right accessories. With the right tools, changing the water is easy, and you can keep the tank clean at all times. Hoses, nets, and maintenance tools are also part of the basic equipment needed to maintain the biological balance in the aquarium.

Tip for small aquariums

If you’re caring for a compact tank, you’ll find special nano aquarium accessories that are perfectly tailored to small freshwater aquariums. They make maintenance easier in tight spaces and ensure that even mini-aquariums remain stable, clean, and beautifully arranged.


In addition, at Petonus you’ll find accessories tailored to the most important aspects of aquarium care. For healthy plants, we recommend our plant fertilizer; for clean water, our cleaning products; and for a stable tank setup, the right substrate. You’ll also find medications to support fish health, as well as silicone for small repairs and sealing.

 

Personalized Advice at Petonus

Not sure which accessories your aquarium really needs? Our team will be happy to help you choose and explain which products are right for your tank. Simply contact us via the form, by phone, or in person at our specialty store in Jena. This way, you can care for your freshwater aquarium easily, safely, and with total peace of mind.

 

Buy Aquarium Accessories Online at Petonus

Discover the wide selection of accessories for your freshwater aquarium now. From care products and plant fertilizers to substrate and water-change tools, you’ll find everything you need for a stable and clean aquarium in the Petonus online shop.

Order your aquarium accessories conveniently online at Petonus and ensure a consistently beautiful and healthy underwater world.

Popular Brands
Popular colors