This question has been asked a million times, and the general answer is usually either get the largest affordable, or personal preference. So, I hope to share with you some specific specs and preferences and hopfully see if there is one with better match.
SPECS
Tank Volume = (5 x 2 x 3ft main + 4 x 1.5 x 1.5 sump) minus (5 inches DSB in main tank + live rocks + others) = about 1200 ltrs
Corals = 70% SPS + 30% others
Fishes = 20 to 30 small 2 inches fishes + 1 or 2 tangs
Other Filtration = DSB + Live rocks + macro algea in sump
BUDGET = about S$1.5K
SKIMMER PLACEMENT = Equiptment room with sump, so NO RESTRICTIONS
All 3 are EXECELLENT skimmers ... just which one best fits my needs!!!
SKIMMER PREFERENCE
Deltec 851 (S$1,399)
Heavy Stocking 1000 L (222 Gal)
Normal Stocking 1500 L (333 Gal) (16mm/20mm flexible connection)
Water Throughput 1000 L/H (222 Gal/h)
Comments: Execellent reviews ... but worried about being under capacity for my setup. Sorry, next jump up in model is really beyond my budget!!!
Will get this if ... higher capacity at that price, will grab immediately!!! Also will get this if this forum's gurus think that the capacity is high enough for my setup.
Hydro 2000 (S$1,548)
For aquariums: 2000 l to 2800 l
Water Throughput 3200 l/h
Comments: Very few reviews ... maybe still new in market. Good capacity on paper, but really not sure of performance. Why is it that not many people are using this??
Will get this if ... there are good reviews on this.
Bubble Master 250 (S$1,118)
air intake of 2000l/h
Comments: 3 words ... VALUE FOR $$$!!! But I worry about 1. construction quality, 2. unable to control the skim flow, & 3. the long-term performance of the thread wheel. Those wire on the wheel looks like it will either deform or break easily!!!
Will get this if ... effectiveness & durability of BM is not VERY significantly different from above 2 skimmers. Save $$ and put into better water flow!!
BTY, would LOVE to see these at my LFS, but in KL, all are pre-ordered from Singapore LFS!!! Most likely, have to order without actually seeing the actual product!!!! So, have to rely heavily on users like you!!!
Any comments are appreciated!!