View Full Version : Which skimmer for 34g heavy sps and fish load

05/06/2017, 01:32 PM
I've ordered 9004 dc but I'm having second thoughts. Perhaps 9012 is the choice despite it's spec says it's overkill.

Any thoughts?

05/08/2017, 09:48 AM
If we gave the 9004 DC the most conservative rating for heavy SPS and high fish load it is rated to 23.7 gallons. My opinion is the 9004DC is enough, I use the 9012 DC, my tank is set up now 4.5 months and is 215 gallons, I keep mostly montipora caps but all are small frags now. I have 5 anthias, a pyramid butterfly and 2 bangaiis and I feed 3 cubes of fish food per day. I also do vodka dosing and in all this time I have changed 15% of the water twice, last time was 2 weeks ago. My nitrate is undetectable, phosphate is .06ppm and I suspect most of this is when the fish were new I used an anti parasitic fishfood and the medication is a phosphate salt. I am using a little GFO now to drop this but I think the basic idea is the smaller skimmer takes less space and with other filtration methods and water changes it should be no problem. I will say that the 9012 fills the cup every 2 days since the Vodka dosing was started so one reason to go bigger could be the larger cup capacity, but the holiday cup 9004.145 is another way.

05/08/2017, 11:41 AM
Thanks 9004 certainly is smaller so if it works all the better.

05/12/2017, 12:12 PM
If I choose 9012 anyway. Would it work fine although oversized?

05/12/2017, 01:11 PM
It likely will, one concern with an oversized skimmer is that if there is not enough material to generate a foam column, even if waste is present, nothing will be skimmed into the cup. I think that is a risk if the tank is not very heavily stocked.