Delivery throughout the EU

Aquael Ultra Heater 100 W – Aquarium Heater with Day & Night Mode

Trusted by 500+ aquascapers

€39,99
  • Separate day and night temperatures
  • Switches modes on its own
  • Thermostat accurate to ±0.25°C
  • Shatterproof body for large fish
  • Overheat protection built in

A light sensor tells this heater when the room goes dark, so it drops to your night setting on its own and mimics the swing fish get in nature. The thermostat holds to ±0.25°C, and the plastic body will not shatter if a big fish knocks into it.

Fast delivery (1–5 days EU)

Carefully packed and protected

Tips from real aquascapers

Description

The Aquael Ultra Heater 100W Day & Night is an advanced electronic aquarium heater with a built-in light sensor that automatically switches between separate daytime and nighttime temperature settings — mimicking the natural temperature fluctuations of aquatic environments. The shatterproof plastic housing makes it safe for aquariums with large fish, water turtles, and powerful swimmers. Precision thermostat accuracy: ±0.25°C.

Key features

  • Automatic Day & Night mode — built-in light sensor switches modes based on ambient light
  • Separate day and night temperature settings
  • Electronic thermostat — ±0.25°C precision (Smart Heating System)
  • Shatterproof plastic housing — safe for turtles and large fish
  • Built-in overheat protection
  • LED ring indicator for current and set temperature
  • Temperature range: 20–33°C

Technical specifications

  • Power: 100 W
  • Tank size: up to 100 L
  • Temperature range: 20–33°C
  • Accuracy: ±0.25°C
  • Housing: Shatterproof plastic

Pair with

  • Aquael FZN PRO 400 — hang-on filter for aquariums up to 75 L
  • Aquael Shrimp Set Day & Night — complete nano aquarium

  • Professional support

    Expert help when you need it

  • Delivery throughout the EU

    Delivery to all EU countries

  • Secure payment

    Fast and secure payment options

  • Easy returns

    Лесно връщане и замяна
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FAQ

What makes Aquarium Boutique different from mass-market stores?

We don't sell everything — we sell only carefully selected products, personally tested. Every item is chosen with a clear purpose: to work well and last long. You don't need to guess about quality — we've already done that for you.

Do you ship to my country?

Yes, we ship across all of Europe. For Bulgaria we work with BOX NOW and Speedy — fast and reliable home or locker delivery. For other EU countries we use international courier services.

How quickly will I receive my order?

For orders within Bulgaria, we typically deliver within 1–3 business days. For other EU countries — usually 3–7 business days depending on location.

Can I return a product if I'm not satisfied?

Yes. If something doesn't meet your expectations — contact us. We have a clear and fair return policy. Your satisfaction matters to us and we will find a solution.

Do you offer advice on product selection?

Absolutely. Our team keeps aquariums and knows the products personally. Write to us — we'll help you choose the right solution for your tank, budget and experience level.

Are your products tested and approved?

Yes. Every product in our store has gone through our personal selection and testing process . We only work with trusted brands and don't list products we don't believe in.

What payment methods do you accept?

We accept all major payment methods — credit and debit cards, PayPal, and cash on delivery for Bulgaria. All payments are secure and encrypted.

How can I track my order?

After your order ships, you'll receive an email with a tracking link. You can follow the status in real time directly through the courier's website.