your english is probably better than the translation tool i just used...
"I will on this ff in the Dutch answer haiko become beetje too difficult differently that English! therefore if you the ff translated differently zat also a beetje with the financieën had that day filter material still no (now, however) comes look at as much as more at than only one aquarium! there now meanwhile zeoliet and keramiese pijpjes... also bioballen.blauwe worry about filter wadding and white! sand I have taken expres because they feel himself in this simply the bests steven, frank, nico and most of the people will advise here it you all! it is possible, however, gravel but is not natural because they must is able bury itself what they only do if they are gestressed or threatened feel themselves therefore if you ensure then that they do not feel gestrest roam round itself then them simply lively without burying itself! I have of this no charge because they feel himself simply complete a lot at their ease that see you also to the photograph"
LOL