Hidom Aquarium Heater 75w HT-2075 - Upgraded Specification

Come ps with lots of suction cups need the them in my 70l take just right and the bring indicator light let’s you know it’s working

This is my second. I left the first one plugged in when the tank was empty and it melted

This was ok during the warmer weather but now its getting slightly cooler doesn't seem up to maintaining temperature in a small 28 litre aquarium. Turned the setting up and its still barely coping. Having to ditch it and get a more powerful one which is disappointing as it should be up to the job.

It does exactly what is says. It keeps the aquarium to the temperature you set it at. My fish and me are thankfull.. nothing worse than cooked fish when you want them living.

New to the hobby, came across this when searching and gave it a chance and so far there have been no issues that warrant any concern.

I bought this heater in May 2020, to replace the original 55W heater that came with my Aquaone 40 55litre cube tank. The 55W heater was struggling to maintain the temperature sometimes, so I needed more power. 75W seemed about right (I have lost fish in the past with heaters failing 'on' and overheating, so I didnt want anything too powerful). The Hidom has worked faultlessly since then, maintaining a steady 23C throughout the year.As far as accuracy goes, I dont pay any attention to the dial on the heater - especially as it is positioned in a filter compartment. I adjusted the temperature based on a thermometer in the main tank. If I recall, I turned it up slightly from the default factory setting and its been stable since then.Would be very happy to buy this make of heater in future.

Neat but my tank sat at too cold and i turned it up to 28C then checked again in the morning as my fish were moving slowly as the tank was at 21C so I had to use the old one

I have to be truely honest, I am not impressed by this design at all.But, due to the cost of this I am now on my 4th one, each one has failed due to the same reasons... It does not have a thermostat cut off!!!!!!!The 50w Heater in my tank has worked fine for 4 years now, but I also have a spare one so as to heat up clean water for refreshing the tank.As said this is now the 4th Hidom, all 3 previous heaters have BLOWN up because of a MAJOR OVERSIGHT in the design and on my own part, there is NO THERMOSTAT cut off - This make this heater downright DANGEROUS!!! But, as its cheap you buy the same old same old, as you know its faults and limitations.RIGHT - how to make one of these HEATERS BLOW UPPlace the heater in a bucket of Water, heat your clean water up. Get it to the right temperature, then pour the heated water into your aquarium slowly so as not to stress your fish out.GREAT, now you have done that, you realise that you forgot to switch the HEATER off!!! The Heater is now BRIGHT RED, the Plastic suction cup holder has melted onto the glass, you pick it up, burn your hand, you drop the heater n the water and all of a sudden the GLASS SHATTERS!!!!Alternatively... Try thisFrom the full bucket of heated water place 1 or 2 litres of water into your tank, leave the rest of the water to heat, come back the following day to find that the water level has dropped below a certain level, and you will find that the GLASS has cracked. I did this without realising again... Refilled the bucket switched the heater ON, and BANG!!!!The HEATER shattered, letting in water to the ELECTRICS!!!I am not shouting SOUR GRAPES - I have on 2 previous ocassions left similar messages about IF this is the BEST of BRITISH DESIGN, then who forgot to include a automatic THERMOSTATE CUT OFF!!! No one has ever answered...IF you have one of these heaters, then just try it, take it out of the water and in seconds it starts to OVERHEAT, quickly starting to GLOW BRIGHT RED. Water is actually the COOLANT on this heater (daft really) and without water the heater just runs away with its self, and there no cut off.Now I am not suggesting you do this, but it can and does happen, and it happens so quickly that you don't know that its happened until you put the heater back into the water - then CRACK!!!!CAN SOMEONE PLEASE BUILD A THERMOSTAT SAFETY SENSOR into what is a GREAT 50W heater, so thatt its SAFER for all to use.