What to do with a 1000 Litre pond??

I totally forgot about pygmy cories!
Must be because I've been waiting for a shipment of them for about 6 months now

 

Again don't stress about filtration or siphoning junk out as you suggest , it's pretty self maintained, actually one the pioneers as far as a 'drilled' systems, with multiple substrate levels and biological mediums. However a long handled net is preferred and you never know what you might find if you make the effort to do a substrate clean. ..

 

Thanks all...... I've learnt something.... Thread may be closed.... thanks mods.