Sponge Filters for 75 gallon?

  • We are currently upgrading MFK. thanks! -neo
I run over 12 of the ISTA brand in my various tanks. I’d throw a couple of the bigger ones in there and call it a day. You can also mod them to have an airstone that quiets them down a bit. Or pop a Powerhead on one.
 
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Think I have 6 hydor...

work well,

think I need to change the air stones in them...
 
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