OASE Indoor Aquatics HeatUp 400 Adjustable Fish Heater

Skip image gallery
Slide 1 of 6
$59.99 (-5%) Chewy Price
$62.99 List Price
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME
In Stock
FREE 1-3 day delivery
Free 365-day returns

Pay in 4 interest-free payments of $15.00. .

About This Item

Details

  • Suitable for fresh and marine water aquariums up to 106 gallons.
  • Temperature can be adjusted between 66 and 90 degrees Fahrenheit, and secondary knob allows for precise adjustments.
  • Temperature levels are monitored and controlled for automated, uniform levels.
  • Includes a thermal shutoff switch for extra protection, activated control light lets you know when the unit is heating.
  • Durable quartz glass tube for additional safety.

Instructions

Questions & Answers

1 Customer Questions

Can this heater be placed horizontally?

Answer by Chewy • Dec 18, 2023
This heater must be installed in the aquarium vertical. It is not recommended to submerge the entire heater on the bottom or horizontally. The black and blue knob should not be submerged.
Reviews
Write a Review
4.5
Rated 4.5 out of 5 stars
2 Ratings
Terms & Conditions

2 Customer Reviews

Rated 5 out of 5 stars
By Sidonia on Dec 19, 2025

Fast delivery. Great product.

Reliable heater.

Reliable heater.

Rated 4 out of 5 stars
By Madilin on Jan 28, 2025

Good

Does what it says but I still think it's over priced ngl.

Does what it says but I still think it's over priced ngl.