Thanks for the post comments noted I think the best approach will be to get a larger tank cica 60cm long which will also make the tank less populated. It is disappointing that this advice was not given from where I obtained the tank whom confirmed all was fine. I shall look into a larger 2nd...
I've tried quite intense / dimly lit / not lit at all - no difference albeit they preferred not too bright! Thanks for the reply and any other ideas - I was thinking of changing the tank type and introducing another breed say Mountain minnows? Any thoughts would be appreciated!
I have just recently set-up a new temperate tank for my mum. It's a sperical type 30l and I introduced about 8 Plattys from my tank of varying age. They were happy and quite bold fish in my tank but in my mums they hide away within the foliage and are shy of any light except simply still near...