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ARKA - Products for Aquariums

Innovative, eco-friendly products to suit individual nneds

ARKA specialises in well-designed products that take both freshwater and marine aquariums to the next level. The versatile range offers perfectly coordinated system solutions for successful aquarium keeping.

Discover premium food, high-purity sea salt and specialist products for coral care and reef design. Highly efficient water treatment solutions, effective reverse osmosis systems and accurate measuring devices also help maintain a stable biological balance in your aquarium.

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Aquarium Food Bestsellers CO2 Systems Filters & Filter Media Marine Aquariums Pond Care Reverse Osmosis Systems & Accessories Rocks Water Care Products

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ARKA: 1 - 30 of 125 items

5 Options
4.8 (54)
ARKA myReef-Rocks - Natural Reef Rock, 13-20cm (20 kg)
- Create your dream reef
- Free from harmful substances
- Great design options
£78.50 (£3.93 / kg)

Free delivery by August 20
3 Options
4.9 (72)
ARKA Special Blend, 473 ml

Bestseller
- Degrades organic waste
- Reduces water changes
- Removes odours
£22.50 (£47.57 / l)

Delivery by August 20
3 Options
5.0 (49)
ARKA Nite-Out II, 473 ml
- For marine & freshwater aquariums
- For restarts, water changes & fish stocking
- Without synthetic fabrics
£16.65 (£35.20 / l)

Delivery by August 20
3 Options
3.3 (4)
ARKA Bio-CO2, 473 ml

-20%
- Promotes nutrient absorption
- Easy dosing
- For freshwater aquariums
£10.19 £12.75 (£21.54 / l)

Delivery by August 20
4 Options
4.9 (32)
ARKA TheraP, 473 ml
- Contains live bacterial cultures
- Provides support in case of temporary overstocking
- 100% biological
£19.60 (£41.44 / l)

Delivery by August 20
4 Options
4.8 (30)
ARKA Substrate Cleaner, 473 ml
- For marine and freshwater aquariums
- Reliably removes waste materials
- 100% organic
£16.65 (£35.20 / l)

Delivery by August 20
4 Options
5.0 (4)
ARKA Herbtana, 236 ml

-5%
- 100% organic,
- Based on herbs
- Protects the biological balance of your aquarium
£13.97 £14.70 (£59.19 / l)

Delivery by August 20
3 Options
5.0 (11)
ARKA Premium Reef Salt, 10 kg

-5%
- Even suitable for the most sensitive species
- Promotes colours and growth
- Contains all important trace elements
£41.96 £44.00 (£4.20 / kg)

Delivery by August 20
8 Options
4.8 (5)
ARKA myScape-Rocks Lava Pebbles, 10 kg, 70 - 90 mm (10 kg)

-5%
- For freshwater aquariums
- Ideal for planting
- Ready for use
£27.96 £29.50 (£2.80 / kg)

Delivery by August 20
4 Options
5.0 (13)
ARKA Aqua Balance, 473 ml
- Spore-based
- Improves water quality
- For healthy aquarium inhabitants
£14.70 (£31.08 / l)

Delivery by August 20
4 Options
5.0 (9)
ARKA Aqua-Pure, 118 ml

-5%
- Neutralises heavy metals
- Prevents algae growth
- 100% organic
£6.50 £6.85 (£55.08 / l)

Delivery by August 20
2 Options
4.8 (12)
ARKA Organic Active Salt, 10 kg
- Improves water quality
- Supports the well-being of the animals
- Nitrate & phosphate free
£49.00 (£4.90 / kg)

Delivery by August 20
4.5 (14)
ARKA Artemia - Ready Mixed
- Promotes vitality & colourfulness
- For breeding & corals
- Ready to serve in 24-48 hours
£7.85

Delivery by August 20
4 Options
5.0 (8)
ARKA Phos Out 4, 473 ml
- Simple and safe application
- Binds organic and inorganic polymer-based phosphates
- Without heavy metals
£19.60 (£41.44 / l)

Delivery by August 20
2 Options
5.0 (1)
ARKA myBETTA-CARE - For Betta Fish, 236 ml

-50%
- For natural vibrant colours
- With plant & herbal extracts
- Important vitamins
£6.37 £12.75 (£26.99 / l)

Delivery by August 20
3 Options
5.0 (2)
ARKA Magnesium, 236 ml

-50%
- For seawater aquariums
- Stabilises the pH
- Supports healthy coral growth
£4.90 £9.80 (£20.76 / l)

Delivery by August 20
3 Options
5.0 (1)
ARKA Plants NPK - Liquid NPK Plant Fertiliser, 473 ml

-20%
- For all types of freshwater plants
- Supports root growth
- A practical complete plant fertiliser
£10.19 £12.75 (£21.54 / l)

Delivery by August 20
4 Options
5.0 (10)
ARKA Plants Green, 473 ml

-20%
- Prevents algae growth
- For all types of aquatic plants
- For freshwater aquariums
£10.19 £12.75 (£21.54 / l)

Delivery by August 20
3 Options
5.0 (2)
ARKA Vitaminos Sea Water, 473 ml
- High-quality vitamin & amino acid additive
- Improves polyp development on all corals
- For more well-being & vitality
£14.70 (£31.08 / l)

Delivery by August 20
3 Options
5.0 (1)
ARKA Iodides & Bromides, 236 ml

-5%
- For vital residents in seawater aquariums
- With highly available iodine
- Improves polyp development & promotes coral growth
£9.31 £9.80 (£39.45 / l)

Delivery by August 20
5.0 (13)
ARKA mySCAPE CO2 Checker Set

-5%
- For freshwater aquariums
- Attached to aquarium glass pane
- With indicator solution
£13.97 £14.70

Delivery by August 20
3 Options
4.7 (3)
ARKA Plants Fe - Iron, 473 ml

-20%
- Biologically highly available
- Without phosphate & nitrate
- For freshwater aquariums
£10.19 £12.75 (£21.54 / l)

Delivery by August 20
3 Options
5.0 (3)
ARKA Marine Flakes Fish Food, 250 ml
- Contributes to growth
- Made with the cold-pressing process
- High-quality ingredients
£7.35 (£29.40 / l)

Delivery by August 20
2 Options
5.0 (5)
ARKA PVC Tubing 12/16 mm - Blue, 10 m

-50%
- For freshwater and seawater aquariums
- Made of flexible PVC
- High-quality
£11.77 £23.50

Delivery by August 20
3 Options
4.3 (9)
ARKA Algaway, 473 ml
- Stops algae growth
- Prevents new growth
- For healthy plant growth
£14.70 (£31.08 / l)

Delivery by August 20
4 Options
5.0 (6)
ARKA Xtreme, 118 ml

-5%
- Reliable removal of chlorine and heavy metals
- Gentle on all living things
- 100% sure
£3.70 £3.90 (£31.36 / l)

Delivery by August 20
2 Options
4.3 (4)
ARKA Phos-Out 4 Granules, 1.000 ml

-5%
- Phosphate remover based on iron hydroxide
- Acts permanently & safely
- Prevents unwanted algae growth
£18.63 £19.60 (£18.63 / l)

Delivery by August 20
2 Options
5.0 (2)
ARKA Reefscaper - Reef & Coral Glue, 450 g
- Ideal settlement area
- Fast curing
- Easy to process
£9.80 (£21.78 / kg)

Delivery by August 20
2 Options
5.0 (2)
ARKA mySHRIMP-CARE, 118 ml

-5%
- With select plant & herbal extracts
- With aloe vera
- For freshwater aquariums
£8.37 £8.80 (£70.93 / l)

Delivery by August 20
3.1 (7)
ARKA ARKA myAQUA pH/TDS/EC Measuring Device with Thermometer
- Multifunction meter
- Suitable for aquariums, ponds, swimming pools, monitoring of osmosis plants and drinking water
- High precision
£39.50

Delivery by August 20

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* These delivery costs are applicable to standard shipping. There may be additional costs, e.g. due to the weight, size or properties of the products. You can find this information in the product description.

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