I have to buy some new heaters because I am upgrading. Thus far I have used non adjustable heaters due to price considerations. However I see some posted in reccomendations that are the same price currently. I don't like the appearance of heaters in the tank and I normally bury them under the gravel. The ones I use are flat. I was thinking of getting this one:
It says can be submerged and positioned horizontally but can I bury it?-Maybe put it in a corner and only have the light barely showing? Would this be too risky since it's a glass heater?