6100 vs 6200

[InsaneReefer]

What is the GPH diference between a 6100 and 6200?

On what size tanks do you recommend the 6200's?

 

[rvitko]

Both are obsolete but if you are buying older pump the 6100 did 3200gph and the 6200 did 5200gph. The main difference is the diameter of the flow cone, both are for tanks 6ft+ long or very high flow SPS tanks n the 4-6ft range. A 6200 is of the most value when a tank is at least 30" in depth and width, 24 or less I would stck with the 6100.