okie.... how big is ur tank, how many mossy u have and how big are they?
I keep them between 25-28 celsius as my country is hot so i am using a chiller to chill my tank for them... my chiller kick in at 28 and kick off at 25.
I am using a sump for my tank .. inside the sump i use carbon and some bio home for bacteria to live in as filter as well...
Also maybe u might want to add some lava rock in as they need dry area to live their egg on... imine lay the egg on the rocks doh.