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post #2 of (permalink) Old 02-14-2013, 05:03 PM
HD Blazingwolf
Planted Tank Guru
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Join Date: May 2011
Location: Chattanooga, TN
Posts: 4,907
if a sponge can handle 125 gallon tank, its
A. Huge
B. has a power head to move lots of water or
C. is vastly underrated for the task

i'd stick with the penguine for right now, the sponge could be used as an accessory, for bio filtration but don't count on it as the primary

low light tanks are Generall easy to maintain. if its low enough light, the fish + food and water changes should be able to provide all the nutrients the plants need

having lots of plants will also help prevent the occurance of algae.
the low tech section of this forum has a great list on low light/ easy to care for plants that should fit the bill quite nicely

if you don't mind how many and what kind of fish do you have?
what type of lighting do you have?
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