Recent content by herty

Thanks for swift reply. External because (a) The tank isn't very big and (B) didn't fancy an under gravel. What exactly are hang-on-back filters ? They sound like they could be what I need - to you know of any examples to search on ? And if they hang on the back, are they external or internal...

Hi there, I've a small(5g) tank with a small(4) shoal of white clouds. Purchased for the kiddies without much helpful advice from the lfs I'm afraid. Anyway, a month later they seem to be alive and well. However, I've read that these things like a bit of water movement. Rather than take all...