Does a protein skimmer use up more water?

BlueAbyss · #1 05-20-2009, 06:04 AM

There will be some evap through the bubbles in the skimmer... I've been told that a skimmer can humidify air quite well, the more air through the skimmer, the more evaporation (seems logical to me).

OH yeah, you're running a fluval filter? Do you have bioballs in it? The reduced water flow through it when it was sucking air likely caused some bacterial die-off, which could cause a mini-cycle (where the nitrite could come from). As far as having nitrate, I have no idea... skimmers don't remove nitrite or nitrate, they should actually remove some waste products before they break down to that point.

hillegom · #2 05-20-2009, 05:19 PM

+1 on the fluval. It is ok if you are using it for extra flow, but if it has filter media, then you should be cleaning it every 2-3 days. Otherwise, it just becomes a nitrate factory.

fkshiu · #3 05-20-2009, 06:59 PM

Yes, a protein skimmer will increase evaporation because of the increased surface area created by the bubbles. More evaporation is GOOD in reef tanks because it aids in gas exchange and temperature regulation. You will find that your pH will fall and your temperature will rise if you purposely prevent evaporation. Furthermore, if you are using kalk then more evaporation means you can add more kalk.

I agree with the others with the NO2, NO3 spike being caused by the canister. Get rid of it. It is not required and will usually do more harm than good.

BlueAbyss · #4 05-20-2009, 10:32 PM

If you need the canister for circulation, it will work fine for that... but do remove the media, it will move more water and won't cause issues if this happens again.

jassz · #5 05-21-2009, 03:49 AM

All right, I'm more than I little confused. I thought having proper filtration and ripe media were an absolute MUST for an aquarium. You're telling me I don't need either? What filters the water then?

I have had the tank since May 2, and was just starting to wonder when/how I should do filter maintenace on the Fluval. It was going to be my goal for this weekend. I had a vague idea what I should do there, but now even my vague idea is out the window. ACK!

Also, what is kalk? I can see how evaporation affect salinity, but I can't follow the issue with pH dropping. BTW, my pH has always been 7.8... is that too low?

Thanks,

mike31154 · #6 05-21-2009, 03:56 AM

Sump, skimmer, live rock and in some instances the sand bed provide filtration in saltwater systems. As mentioned, the canister may be used for extra flow, water volume or to run carbon or GFO for phosphate removal. All other media in the canister is counter productive.

Blom · #7 05-21-2009, 04:43 AM

My understanding of what everyone has said (fairly new to this myself) is that when you do your filter maintenance, which should be done soon. You should remove all the media (Bioballs, filter pads) as these add more problems than they their worth. Run the canister empty (or with Carbon) if you need the circulation, if not don't even bother using it. The sump is going to do the job of the canister, with the skimmer housed inside is your filter pads. The live rock is your bioballs (sorry bad analogy).

Sell the Fluval and go buy more fish with the bounty