NonstickRon
Fish Crazy
Hi NonstickRon,
I have no experience with the top fin filter pumps but so I have just had a quick perusal on google;
<a href="http/www.petsmart.com/product/index.jsp?...;utm_source=cse" target="_blank">http/www.petsmart.com/product/index.jsp?...;utm_source=cse</a>
Petsmart sell these so as that seems to be your LFS you should ask if they can source them.
Your filter should have mechanical and biological filtration. To some degree a carbon filter will perform both tasks as it will remove the dirt particals / chemicals and biological bacteria will colonise it. However as you correcly pointed out whenever your replace the carbon pad you will remove the majority of your beneficial bacteria (small amount will still remain in gravel, ornaments etc.
This is why most filters have several stages to incorporate different filter media. Is there space to add additional pads in you filter? I would image there should be, but again I am not familiar with the product.
Hope this helps a little
Good luck,
Regards,
Bricko
P.S. please don't buy any more fish just yet.
Don't worry, no more fish.
I've been considering buying biowheel filter in addition to what I've got running already. The powerfilter is a 40 gallon model running on low. Can I have too much filter?
That girl last night told me her manager would be around today so I'm probably going to swing back up there on my lunch break today and annoy her a bit.
EDIT: Called Tetracare's 800 number (turns out they make the topfin filters for petsmart) and they're sending me the biofilter thingy that is supposed to go in front of the carbon bag cartridge. I guess they've updated their product and the petsmart near me is just carrying the old version.