Filter advice please.

[Dragutter]

Hi.

I've got a jewel 190 and its got 15 small mollys plates and guppys in it.
How ofter should I change water ? And how much

How should I clean the filters ?
Should I rinse them ALL or just the top one
in the tank water in a bucket?
Last one the filter housing is becoming unattached from the side, what can I use to stick it back on and can I do it while its full??
Thanks Dave.

[Slade]

You should do PWC weekly if possible. Anywhere from 20% to 80% depending on nitrate, so use a test kit. API is a good one. Rinse filter media in a bucket of tank water.

Not sure what you mean about unattached can you post a picture?

[Dragutter]

Cheers for that.

Not at home at moment
.