Eheim is looking like a winner, but you say that it will work in 3" of water... is that the bare minimum, or a rough guess. a difference between requiring 2" (ideal) and 4" of water is going to make a significant different in the amount of drainage space for the 125gal tank.

but thanks for the help!
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m|tch the k|d
University of Missouri-Columbia

0.1 Iguana iguana (Green Iguana) ~ Taco
1.0 Uromastyx maliensis (Mali Uromastyx)
~ Fluffy
0.1 Pogona vitticeps (Inland Bearded Dragon)
~ Puff

1.0.1 Notophthalmus viridescens (Spotted Newt) ~ ¿?
0.0.3 Ambystoma maculatum (Spotted Salamander)
~ ¿?
0.0.1 Oeodura monilis (Australian Velvet Gecko)
~ Danny
0.1 Felis catus (Kittie Cat)
~ Gabel
1xx.1xx Hyla versicolor, Hyla chrysoscelis (Gray Treefrog, Cope's GTF) ~ (I work with these guys.)