Hi there,
this is a newly rescaped tank but has been used for around 8 months off and on (the breeding one pictured above),
the 200lt ive had for about 6 months i think, brought it second hand, also been rescaped fairly recently.
so they are not very old, i have never had a problem with these rams, the heater even managed to get left unplugged and didn't work for a night and they were fine, didn't even seem bothered and have coloured up into breeding colours after that happened (probably simulated the rainfall when they breed in nature)
i think perhaps this pair was from the new imports as i have read that the new ones are a lot hardier than the previous imports? (i could be wrong about this).
i have just been lucky to get this pair and to have had no problems with them.
i have had the rams now for about 4-5 months i think.
Claire.