50 watt version has hole in front cover? How big is it? Buying so baby nerite can't get into heaterto replace old heater with gaps like that

if your talking about the area around the red lED its small but if worried , i would put a little dab of silicone and let dry. then use . will tank a look and message back

The red light on mine is always on. Is this normal or should it go off when it hits temp? Not finding anything in the instructions.

The red light always stays on. The Fluval seems to be the most reliable out of all the heaters I’ve tried. Hope this helps.

Keeps Turning off and on? Is it because maybe room temp is warm ?

It has an internal thermometer. It turns off when it gets 78°

Will it auto shut off once it reaches temperature?

will shut on and off . unit is preset

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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P50 Submersible Aquarium Heater

Product ID: 252884952

Details

Brand
Fluval
Color
Black
Included Components
All items in
Item Weight
9.12 ounces
Material
Polymer
Number of Items
1

💧Fully submersible & waterproof

🌡️Preset 76-78°F stable temp

🛡️Shatterproof polymer housing

HK$409

Duties & taxes included

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Description

🌊 Keep your tank thriving with hassle-free, fail-safe warmth!

INSTANT HEAT STATUS - LED indicator keeps you in the know—no surprises, just perfect temps.
SLEEK COMPACT DESIGN - Fits seamlessly in tanks up to 15 gallons without clutter or fuss.
EFFORTLESS PRECISION HEATING - Preset temperature means zero guesswork—just plug and relax.
BUILT TO LAST BUILT FOR SAFETY - Durable polymer casing protects your aquatic friends and your investment.
VERSATILE FOR FRESH SALTWATER - Engineered to support diverse aquatic ecosystems with reliable warmth.

The Fluval P50 Submersible Aquarium Heater delivers consistent, preset heating at 76-78°F for tanks up to 15 gallons. Its shatterproof polymer housing ensures durability and safety, while the fully submersible, waterproof design offers flexible placement. An LED indicator light provides real-time heating status, making it an ideal, low-maintenance solution for tropical freshwater and saltwater aquariums.

Specifications

Asin	B08P7VCG11
Best Sellers Rank	#51 in Aquarium Heaters
Date First Available	December 6, 2020
Item Model Number	A745
Manufacturer	Rolf C. Hagen (USA) Corp.
Product Dimensions	1.57 x 0.79 x 6.1 inches; 9.12 ounces

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HK$409

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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