Suitable Media For Built-in Filter? Options

[shimark]

Hi All,

I am planning to buy a 3ft tank with built-in filter compartment. Have decided to stop using canister filter due to a few bad experience with leakages. Hope to have a filter system thats need as few maintenance as possible due to busy schedule. Thinking of using the following filter media:-

1. First layer (from top) - wool
2. Second layer - Bacteria house (for the top wet dry part)
3. Third layer - BioHome
4. Fourth layer - Plastic green mat
5. Pump compartment - oyster shell

Would appreciate any comment or suggestion to improve the above system.

Thanks

[CP]

A pic or sketch best describes the intended system but in the absence of it the description sounds good enough.

You can save on the biohome since you already have bacteria house; or the other way round; cos' both these medias are relatively expensive and furthermore your tank capacity is only 3ft so its an overkill in some sense.