In my opinion that is a very good way to attach a cryptic zone to the aquarium. A cryptic zone requires food to function correctly, therefore it is best not to place it after the skimmer otherwise a lot of the food will be taken out. They need ‘dirty’ water. The good thing about having it fed from the overflow is that the water is rich in oxygen as well as being dirty.

Yes I know I need to get some pictures done – I promise I will try and get some decent ones done!