lastlight's 225

[JDigital]

Originally Posted by kien

Anyway, with careful powerhead direction you can avoid hitting the sandbed and blasting it. This is another reason why I like the tunze 6105 vs an MP40. The MP40 has such a wide wave that it would surely hit my sand bottom, especially since my tank is only 20" tall. I think the mp40 has an 18" diameter flow or something like that. With being able to direct the flow I can blast a narrowish stream down each side of my 6' tank, have it hit the other end of the tank and flow back through the centre of the tank without touching the sandbed. It actually works out quite well for me. 6800+gph and no sandstorms.

That's the first time I have heard that arguement regarding tunze vs mp40... I've got a mp20 running 100% on Reef crest, 6" above my sand bed (in a 24x24x12 tank), and it doesn't stir up a single grain of sand...