The main tanks measures 110X80x40. the pipes from the sumps are 20mm, and return pipes are 40mm. Sumps are 100mm lower than the main tanks. The reason for the very special filtersystem is the enourmous amount of waste Panaques produce. The front part of each 75x40x40cm sump works as settling chamber for particles. Normal filters work by filtering out particles, and will get clogged in a short time by large number of panaques.
My Panaque rack has now been running for about a month. The top one is inhabited by 18 Panaque sp. L204.
The middle tank has 3 L417, 3 Hyposomus sp. "Huallaga", 10 Lasiancistrus heterachantus and one L206
The lowest tank is inhabited by 4 L417 and 4 L426.
Because of the very clean water these tanks are very pleasant to photograph Panaques in. There will be a lot of photographs when I find the time

Please study the drawings. They took me a week to create using Google Sketchup:



