Which accessories are essential for a Discus tank?

Drop tests, siphon, net, dedicated bucket, an independent thermometer: the whole kit stays under €60.

What budget for keeping a Discus?

€400 to 900 to set up an equipped 300 L tank, then €10 to 25 a month in routine costs.

Discus: gear and buying guides

The discus is a stunning but very demanding cichlid, reserved for experienced aquarists. It lives in groups of 5 to 6 in at least 300 L, with warm water at 28 to 30 °C, very soft, acidic and impeccably clean. Frequent water changes and a high equipment budget make it a project in its own right.

Profile : 15 to 20 cm as an adult, 300 L minimum for a group of 5, very soft water between 28 and 30 °C.

In our shop, for this use: 6 cm nano air diffuser with suction cups for aquariums (€19.90) · the whole shop

We don’t ship products to your country yet; our practical guide downloads anywhere: Beginner axolotl: aquarium and care (€19)

Species profile

Lifespan: 10 to 15 years
Adult size: 18 cm
Minimum tank: 300 L
Water temperature: 28 to 30 °C
pH: 6 to 7
Temperament: A gregarious, shy cichlid that forms a group hierarchy and gets outcompeted at feeding time if too harassed.
Health watch: hexamita and hole-in-the-head in imperfect water · white spot disease in fragile juveniles

🩺 This health information is general in nature and does not replace a consultation: at the slightest doubt about your animal’s condition, talk to your vet.

Discus gear, family by family

🍖 Food
A delicate carnivore: dedicated discus granules, brine shrimp and beef-heart preparations used in moderation. Several small meals a day, since it eats slowly and gets outcompeted at feeding time.
🧴 Care & grooming
One of the most demanding species for water quality: very low nitrates, remineralized RO water and 25 to 50 percent weekly changes, even more for juveniles. Any lapse quickly shows in its color and appetite.
🎾 Toys & enrichment
Large vertical driftwood, heat-tolerant plants such as some sword plants, and open zones for group swimming. A calm environment without sudden movement in front of the tank limits stress.
🏠 Bedding & habitat
A tank of at least 300 L, 50 to 60 cm tall, for a group of 5 to 6 that establishes its hierarchy. Tankmates should be limited to calm warm-water species such as sterbai corydoras.
🧳 Travel & safety
Transport in double, opaque bags kept warm, as temperature drops are its main danger. Drip acclimation of about one hour, in the dark.
🧰 Accessories
An RO unit, a powerful external filter, a 250 to 300 W heater and a reliable thermometer are essential. Expect 400 to 800 euros of equipment, excluding the fish, which often cost more than 50 euros each.

🧰 Accessories for a Discus: tests, upkeep and budget

Water tests: your dashboard

The first smart buy for a Discus costs €15 to 30: the drop-test kit, out weekly for NO2-NO3 and at any doubt for GH, KH and pH. Complete it with a net matched to its 18 cm, a gravel siphon for maintenance and a bucket strictly reserved for the tank: residual detergent from a household bucket is poison.

The Discus specifics

a backup heater in the cupboard: at these temperatures, a 24-hour failure costs dearly; a battery backup air pump: at full stocking, a filtration failure is measured in hours.

The full budget, no surprises

An equipped 300 L setup (tank, filter, heater, lighting, substrate, decor, tests): expect €400 to 900 upfront, then €10 to 25 a month (food, electricity, conditioner). Second-hand often halves the tank price — only the filter and heater deserve to be new. Details on the full Discus profile.

Quick answers

Which accessories are essential for a Discus tank?: Drop tests, siphon, net, dedicated bucket, an independent thermometer: the whole kit stays under €60.
What budget for keeping a Discus?: €400 to 900 to set up an equipped 300 L tank, then €10 to 25 a month in routine costs.