Which kinds of filter is best for planted tanks ?

[wootwoot]

any guys here can advice me which kind of filter is best for planted ?? submerdge filter ?? OH filter ? intrerfilter ?? which 1?? pls advice

[Simon]

IMO, the most ideal filter would be the cannister/external filters, for easy maintenance and it doesnt take up any internal/tank space. Internal will also do, but u have to hide the filter in one corner and block it with plants. Overhead and overflow isnt recommend, because of water disturbance that leads to loss of CO2