Hey all! I've been thinking that for my Fluval Flora 7.9 gallon planted tank, the simple internal sponge filter that comes with the setup is probably not optimal filtration. I've looked at the smaller HOB filters but having a well-fitted glass lid probably precludes the use of HOB filters. Is there any sort of more complete internal filtration system that you guys have personal experience with? I just discovered I have the option of buying a separate carbon insert for my current filter. Or is internal filtration pretty much useless (except to build up beneficial bacteria and for mechanical filtration)?
First small tank = many, many questions.
Thanks guys.
First small tank = many, many questions.

Thanks guys.
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