I've tried that with the pump that I've got and I can't seem to get it to work, which is why I'm wondering if I need a different vac. If anyone can point me to a website where I can buy a suitable product in the UK that would be great.
A while back I switched to Play Pit sand in my tank, I followed all instructions and run the sand through with a hose pipe until clear before adding to the tank. Everything looked fine, the water cleared very quickly and the fish seemed perfectly happy.
However I now have two problems, the...