My planted nano's filtration can't seem to keep up with the bits
o' plant matter drifting around aimlessly in the tank.  I've
been considering using an internal filter now and then when it
looks like the water could use some extra polishing. Lately
there has been lots of poking and prodding since recently adding
HC due to chasing the odd bit that floats up, having to reinsert
it into the substrate, thus kicking up crud on a daily basis. I
think if I ever got it completely clear it would actually stay
that way until I disturbed something without the internal in
play.  Now that the preamble is out of the way ... I've been
poking around and have come across Penn-Plax Cascade Internal as
well as a Tom Aquatics internal on Big Al's Canadian site. What
ever I get, it doesn't have to be huge, I think a little more
current in the dead area in the middle of the tank and a little
extra filtration will make a big difference. Basically is there
any "wrong" choices here no matter who I go with? I'm sure if I
dig further I