Here is a list of bits for the filter, this is for demonstration purposes only
http://www.aquacare.co.uk/shop/index.html?...&target=d2.htmlI would still get the 400 if you are going to keep the juwel filter.
In there you will see the filter basket. This fits into the main compartment of the black case. Into this you will just need two blue sponges and on top of that a white piece of poly pad which collects all the big pieces of dirt. This is the only bit that needs changing when it gets dirty, the other blue sponges just once in a while. You will also see the pump and bits you need as well which is the 400 ltr pump. This fits into the smaller part of the chamber and the nozzles will point out of the hole.
The way it works is that water is drawn from the bottom and the top over the white wool and then down through the two sponges. The pump then takes it up and out again.
To clean the inside all you do is lift the white basket with the sponges in out and using a hose * i use the end of my gravel vac* put this down into where the pump sits *you might have to take the pump out* and thats where you really need to suction from and then you can do the main compartment quickly. You should only need to do this every 3 months i think.
Remember when you order its the compact size you need.
So to summarise 2 x blue sponges and a pack of white poly wool or whatever they call it. And also a pack of the black carbon to be used whenever needed.
The white wool is the first mentioned, its not very thick maybe 1/4 inch but is just used to take out the large bits of debris.
Now, the magi will help circulate the tank for you and stop any parts of the tank getting stagnant. As ive said it comes with the spray bar so the current wont be too bad. If you go back through the ebay listings then theres an even smaller one if you prefer.
Remember though that you will need to cycle it all before adding the fish. I used *cycle* to help mature it. Also using some or all the gravel from your old tank will help speed it up.
What type of filter do you have on the other tank?