Fluval T300 Fully Electronic Heater for Freshwater Aquariums up to 80 Gal.

Great HeaterI always use Fluval heaters in my tanks as they work perfectly and last for yearsSleek black design looks greatthey are rather large tho but easily hidden with decorNot to expensive either pretty good price from a reputable brandWould Highly recommendWill be buying another for my other tank

I got this t 200 for my 180 liter cube hospital tank Nice chunky little heater I have a t300 in my 4 ft tank about 18 months ago I love these heaters the way the litter blue light comes on so you know it's working then flicks to red for a few seconds. The easy temp selection diel at top no little pine that's impossible to turn.holds a steady temp.Pic 1new t200 just set up lots of air bubbles. Pick t300 on its side worked well upright or horizontal. i will only bye these now I have 5 tanks and will slowly get these t series. Not the cheapest but you do see it in build quality. Lol I genuinely love them.best heaters I have had.

I have 5 tropical tanks and have this of the smaller version in every single one. Hold temperature nicely. Super high quality. And the light on the top is just brilliant.

T200-Tank constantly at 25.1'c. Tried 22'c no change. Fortunately I required the tank @ 25'c so on this occasion it is fine but any lower requirements?The unit, as others have said, show red and blue light when operating, this does not affect the fish and is no better/worse than heaters in the larger tank I own.Delivery was quick and on time.T300 in another tank-More accurate temperature control. Unfortunately the suckers holding to the tank keep coming off the tank side, heater kept sliding to bottom of tank. Had to buy some better ones. Apart from that, both heaters work fine. Temperature in both tanks are stable.Added a second T300 to a 5' tank as a back-up heater. Unobtrusive and works as it should. Now used in 3 tanks.29/1/2025 T200 broke. No idea why?

Very reliable and the indication light makes it very easy to know if it's working the size is perfect for my13 galon very good value for money and the functionality is very good but the sturdiness is not the best it has fallen down before but the Ease of application is so nice compared with other companies

Very easy to set up and has a very handy red and blue light on it that let's you know when the temperature is correct. It took about 5 hours to full heat a 240l tank it looks nice and the temperature control is easy to use. It also has a safety cut out encase it fails

Great quality heater. Used thus make for years and never had an issue like I have with cheaper brands. Had a small tank for my daughter but the heater supplied stuck on over night and killed most of her fish.Bought this one which is a lot bigger in size that the cheap 50w that stuck on but it’s way to use/set and is very accurate and reliable.Plus good price and speedy delivery.

Was fine for 2 weeks. Added over £150 worth of tropical fish to my aquarium, the heater ran fine. Then I got home from work yesterday to find ALL of my fish dead because the temperature had dropped to 18 degrees. I've tried to contact Amazon and the seller but the app takes me in loops. To say I am angry is an understatement. I obviously checked all of the connections and sockets and no problems there, this faulty product has cost me a lot of money, stress and hassle. It will be the last time I ever buy fluval again. If I could swear here, I would.