Forum Thread

Fluval Marina Submersible Heater for Aquarium 100W up to 30 Gallon $9.74

$9.74
+12 Deal Score
3,835 Views
Was looking for a small heater for my baby swordtail frays tank and found this. Not the all-time best price but still ~ 50% off regular sale price of ~ $17. Other sizes of the same product sale for ~$20 now. According to product picture this is for up to 30 Gal / 100 L of tank.

https://www.amazon.com/gp/product/B00AFELU1O/
  • Submersible heater for fresh or saltwater aquariums or reservoirs
  • Easy to read temperature settings
  • Impact-resistant glass design; Water proof sealing
  • Includes bracket with suction cups for easy, secure installation
  • Length: 8.5 Inch

Share
Good deal?
You gave thanks to mozillafirefix for this post.
Thank you!
mozillafirefix posted this deal. Say thanks!
in Pet Care & Supplies (2)
If you purchase something through a post on our site, Slickdeals may get a small share of the sale.
Deal
Score
+12
3,835 Views
$9.74
Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more. If you're not a student, there's also a free 1-Month Amazon Prime trial available.

20 Comments

1

Sign up for a Slickdeals account to remove this ad.

This comment has been rated as unhelpful by Slickdeals users
Joined May 2010
L6: Expert
1,179 Posts
163 Reputation
#2
Waiting for a good deal on the tanks.
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Apr 2019
New User
16 Posts
18 Reputation
#3
Quote from cndealking
:
Waiting for a good deal on the tanks.
https://www.petco.com/shop/en/pet...allon-sale
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined May 2010
L6: Expert
1,179 Posts
163 Reputation
#4
thanks but I'm looking for some modern designs.
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined May 2010
L6: Expert
1,179 Posts
163 Reputation
#5
There was a Fluval deal from Walmart but I missed it.
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Jul 2017
L2: Beginner
79 Posts
52 Reputation
#6
Overkill for a 10 gallon portrait tank? Plan to house a beta in there.
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Feb 2011
L2: Beginner
66 Posts
233 Reputation
Pro
#7
Not bad. Thanks OP!
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Dec 2013
L2: Beginner
94 Posts
18 Reputation
#8
I picked up the fluval flex 15 gallon deal, would this be a good heater or too high of wattage? In the reviews a lot of people talk about inaccurate temp settings too.
0
0
0
0
Reply

Sign up for a Slickdeals account to remove this ad.

This comment has been rated as unhelpful by Slickdeals users
Joined Nov 2018
Coleco Rust-Remover
1 Posts
10 Reputation
#9
Quote from slicknod
:
Overkill for a 10 gallon portrait tank? Plan to house a beta in there.
Bigger than one really needs for a 10 gallon but not too high a wattage, it will heat the tank to a set temp but a higher wattage will simply do it faster. Also consider that a 100W is physically larger than a 50W so measure how it will fit in your tank. Also depends on how cold it gets in the room where your fish are. You need more watts to bring a tank from 60f to 75f than bringing it from 75f to 80f. That will all be on the heaters spec sheet. In any case don't trust the thermostat, always have a separate thermometer and calibrate it to that.
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined May 2010
L1: Learner
11 Posts
10 Reputation
#10
I'd err on the smaller side. Common failures for heaters are power loss or faulty temperature sensor. With the former, your tank drops 10-15 degrees. With the latter you fish get hot. If you get an overpowered heater, "hot" could mean you're cooking them. E.g. 30gal heater for 5gal fry tank. Room temp will definitely play a role, too.

I've read some people recommend 2 half power heaters to help with malfunctions, too.

In any case a separate thermometer is a good idea to pair with any heater.
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Jun 2011
L3: Novice
120 Posts
10 Reputation
#11
The thermostat is a starting point, aside from that they are useless. That goes for all aquarium heaters. that dial is never correct because they are mass produced using a single spec and assume the metal used in it is precise.
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Mar 2006
L7: Teacher
2,450 Posts
502 Reputation
#12
I can't speak for the 100W but I'm 0 for 5 on the 300W heaters in this line. 2 out of the box would not power on at all. 3 failed after 1-3 weeks.
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Jun 2011
L3: Novice
120 Posts
10 Reputation
#13
Quote from cisengineer
:
I can't speak for the 100W but I'm 0 for 5 on the 300W heaters in this line. 2 out of the box would not power on at all. 3 failed after 1-3 weeks.
Wow, that is not a glowing review at all.I could really use like 9 of these for a rack. Now I'm not so hopeful.
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Mar 2005
L6: Expert
1,085 Posts
434 Reputation
Original Poster
Pro
#14
Quote from slicknod
:
Overkill for a 10 gallon portrait tank? Plan to house a beta in there.
I'm right now using a 150w heater for my 5 gal baby tank and it still works fine, except it looks ginganic in the tank. As another SDer mentioned, as long as it does not malfunction and boil the tank water, it'll be ok for your 10 gal and my 5 gal, I believe.
0
0
0
0
Reply
This comment has been rated as unhelpful by Slickdeals users
Joined Sep 2012
L3: Novice
225 Posts
22 Reputation
#15
Quote from angeow
:
I'd err on the smaller side. Common failures for heaters are power loss or faulty temperature sensor. With the former, your tank drops 10-15 degrees. With the latter you fish get hot. If you get an overpowered heater, "hot" could mean you're cooking them. E.g. 30gal heater for 5gal fry tank. Room temp will definitely play a role, too.

I've read some people recommend 2 half power heaters to help with malfunctions, too.

In any case a separate thermometer is a good idea to pair with any heater.
I agree. Go small. I had a heater failure while I was away for a few days. Came home to an aquarium at 100f.
0
0
0
0
Reply
Page 1 of 2
1
Join the Conversation
Add a Comment
 

Link Copied to Clipboard