thanks
i have a eheim 2180 with a 500w heater built in and there is a 300w heater inside the tank
you can get hydor external heaters which fit inline on your filters
thanks guys
the tiger has had that split tail from before i got him
the rays are a pair but no pups yet
i think they have just recently mated so fingers crossed
i never expected anything until next year that will make them well over 2 years old