Re: Sponge Filters

[Ken Simolo <Simolo@chem.chem.rochester.edu>]

I like the Brilliant double sponge filters (formerly Tetra, now 
Hagan?).  They suction to the glass so you can clean underneath.  You 
also do not have to worry about fry getting trapped underneath.  What 
I particularly like is that there are two sponges.  This allows you 
to clean one sponge and leave the other alone.  The next time you 
clean the tank, you switch which sponge you clean.  That way, one of 
the sponges is always strongly biologically active.  Also, if you are 
starting a new tank, you can steal one of the sponges from an 
established tank and your new tank is instantly "cycled".  For small 
tanks (2.5 & 5 gallon), I cut down the length of the lift tube.  The 
only real negative I see with them is that the rubber suction cups 
lose their flexibility after a while.  At least mine do after 3 to 4 
years - I clean the plastic parts with bleach every so often, so this 
may reduce the suction cups' lifetime.  I just replace them with 
airline suction cups (10 for $2 retail).

Ken


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