Strong, Steady Heat for Big Tanks and Ponds
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Keep your large aquarium or pond warm and comfy with reliable 1000W power.
This 1000W submersible aquarium heater makes it easy to keep big tanks or pond setups at a steady, cozy temperature. It’s adjustable, waterproof, and built to handle freshwater or saltwater systems with ease. Your fish enjoy stable warmth, and you enjoy simple, dependable heating.
Perfect for big aquariums, ponds, and aquaponic systems.
✔ Helps hold a steady temperature for healthy fish
✔ Works in tanks or ponds up to 1250 gallons
✔ Adjustable thermostat for simple control
✔ Waterproof and built to last
Place the heater in an area with good water movement so heat spreads evenly. Suitable for large aquariums or ponds up to about 1250 gallons.
We offer reliable tracked shipping delivered to your door in 200+ countries.
Processing time: up to 2 business days (may be longer during peak periods).
Estimated delivery times (after dispatch)
We ship from fulfillment centers in the United States, Eastern Asia, and Western Europe. If an item is out of stock in your nearest location, we’ll ship it from another location or production within the same delivery ranges above.
What tank size is this heater best for?
It’s designed for large aquariums or ponds from about 900 to 1250 gallons.
Can I use it in saltwater?
Yes, the corrosion‑resistant design works well in both freshwater and saltwater.
How do I set the temperature?
Use the adjustable thermostat to choose a temperature between 20°C and 34°C.
Helps keep water at a stable temperature so fish stay relaxed and healthy.
Strong 1000W power warms big aquariums, pond tanks, and aquaponic setups.
Built with corrosion‑resistant materials for many types of aquatic life.
The adjustable thermostat lets you fine‑tune heat levels for your fish.
Overheat protection offers peace of mind during daily use.
Why this powerful submersible heater outperforms other options for large aquariums and ponds
| Features | MK Aquarium | Knock-Offs |
|---|---|---|
| Waterproof submersible design | ||
| Strong 1000W heating power | ||
| Adjustable 20°C–34°C thermostat | ||
| Overheat protection | ||
| Corrosion‑resistant build | ||
| Smooth heat distribution | ||
| Works in freshwater and saltwater | ||
| Ideal for 900–1250 gallon tanks | ||
| Reliable long‑term performance |
Yes, it’s made to be placed fully underwater for best heat transfer.
Good water movement helps spread heat evenly, so place it where flow is steady.
Yes, as long as the pond is within the recommended size range.
The stable temperature control helps keep conditions gentle for many species.
No, it runs quietly since there are no moving parts.
Its corrosion‑resistant materials help it stand up to long‑term underwater use.
Yes, it’s designed for 220–240V at 50Hz.
Just check it occasionally for debris and make sure it stays fully underwater.
Yes, some hobbyists use multiple heaters to warm extra‑large tanks or ponds evenly.
