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View Full Version : double ended power sponge filter?



raymond_h2002
12-01-2005, 11:27 AM
Hi everyone,

This is my first post on this forum. I really appreciate all the help and expertise that is shared among the members here. I've been doing a lot of searching and reading in order to avoid asking redundant questions, but my search abilities have reached its limits when it comes to the following issue:

I am looking to set up a secondary filter to supplement my primary filter (rena filstar xp2) in my 37g tall tank. I'm approaching the end of my cycle as i have just set it up last month; it is currently occupied by 6 zebra danios, 1 dwarf gourami, and 2 corys. In the near future I would like to get a few more gouramis, guppies, and a fleet of clown loaches, as well as a few more corys.

I have considered RUGF to cover half the floor, but can't help but think that *some* gunk will bypass the sponge pre-filter on the reverse powerhead, leading to an eventual build-up of crud underneath the plates. I am also not looking forward to having to move the gravel out for the plate installation. One big reason why I am considering RUGF is because of the low currents it produces; I think I get enough surface agitation from the XP2 spraybar and bubble wand, and I don't want the gouramis blown around too much.

As a compromise, I thought of the idea of attaching the penguin 660R reverse sponge powerhead to a regular sponge column. In other words, instead of having the powerhead output through the gravel bed, I would have it pass through the sponge near the bottom of the tank, which can be covered with gravel or plants. I am hoping that this would dissipate the current (though obviously it wouldn't come close to the dissipation efficiency of a gravel bed. I also understand that I might not get nearly as efficient biofiltration as RUGF. I am hoping that the xp2 and the biostars are sufficient.

Has anyone tried doing this? What are your thoughts on this idea?

Thanks everyone!