Looks good on the commercial, you get it home, ready to have it fill your craving and bang...all flash no substance :) you would have been better off buying the 1.00 burger that would have done the job, and cheaper to :)

so you have one and your not happy with it

Nope, Never had a gourmet burger either :) It is what I am starting to hear on all of the reef forums, they were the king but they are being bested by cheaper now. The build has according to almost everyone, aside from cusomt skimmer people, never been surpassed though.

Is there any skimmers that do not fall victim to this and will work well with a fluctuating water level.

HAHA well put.

Sure there are: powerhead fed recirculating skimmers!

But you do have a good point. ALL in sump skimmers (like the BK Minis) will suffer with fluctuating sump levels. It seems that BK Minis are more sensitive to this than most other skimmers perhaps because of the big air they can pull. I strongly suspect that Minis which do poorly are in such fluctuating sumps. Everything from the design of their bubble plates to the big air they pull suggest that they should be awesome performers. The only design criticism of the Minis that one could suggest is that there may be limited contact time for the bubbles before they hit the collection cup because of the pump's location within the skimmer body.

These need to run in-sump. I don't understand why anyone would build a sump compartment for a skimmer in such a way that the level would fluctuate. We're talking about a single baffle here...

:)

OK ITS GOING TO BE A REEF FLO 200 OR a BK MINI 200

Hey Mike not sure it this is helpful but with your size tank I would spring for a SM 200 or 250 if you're going with a BK, I really don't think the mini will match the performance of your BM250. If you don't spring for it this time I can see you selling the mini a few months down the road and buying a SM anyway, might as well do it now :mrgreen: