Problems With Heaters In Small Tanks

[johnnyboy9918]

Fish keep dying when we put a 50w heater in my daughters 35ltr tank, anyone else had similar problems?

 

[the biffster]

Fish keep dying when we put a 50w heater in my daughters 35ltr tank, anyone else had similar problems?

what size heater and what
is the temp set at and
what is kept in the tank

 

[Skins]

Hello and welcome to the forum.

Could you give us more info:
1)Is your tank cycled
2)what are your tank water stats(ammonia/nitrIte/nitrAte/pH)
3)How many fish and what species
4)How often do you perform water changes

Sorry for all the questions but the members on here will be able to assist you better with more information of your tank and its occupants.

Skins.

 

[snowball pleco]

i know it sounds like a dumb question but is there any chance there could be anything on it