moondoggy4
Team RC
https://ca-en.hagen.com/File/bb252fcd-c63b-4be8-b686-86df232985f6 It does look just like the 900 model as well, I can text a picture if you like, not really computer savvy here.
Joining the club. Got me the BBK mini 200 with speedy dc pump couple days ago.
Question though when measuring the unit of water to sit it in in the sump, do you go off the base plate or where the bottom of the actaul body meets the base?
Thanks you very much Slief. Another question the amount of power running these Dc pumps is it best to run full blast or adjust to a diffrent power setting?
Joined the club also. I got the BK Supermarin 250. Quick question what would be the best water level in the sump? Thanks
More often than not, you best setting will not be full power. My RD3 on my supermarin is a 50 watt pump but I found the ideal setting for my tank to be around 38 watts. Every tank is different. Things like salinity, sump depth dissolved organics/bio load etc all have an impact on the skimmers tuning. With the non variable speed Red Dragons, we would have to reach into the sump and adjust the volute a fraction of a turn at a time to adjust the water to air ratio. With the RD3, the same very fine tuning is handled with the push of a button. Increasing and or lowering the pump speed, increases or decreases the amount of air and flow into the skimmer. This has a direct impact on the bubble size as well as water level/foam head height inside the skimmer. As such, you will be using that feature/pump controller to fine tune the skimmer and you will also find some power savings because you will most likely not be running at full power.
Slief is right : ... full power of Airintake is not always better. Every tank is different in bioload and surface tension... Any tanks running better with lower airintake. Thats one of the reasons, why RE was the first company, where developed controllable DC-pumps for skimmer. Permanent overflowing of skimmers has to do with overkill Airintake and bad balance. Speedadjustable Skimmerpumps are one of the most important Points for perfect skimming. And the feeling, what speed is good for my tank...
best regards ... Klaus
Thanks again Slief, I had a RO sss regal 220 with a dc pump and couldn't really get a good explanation on the use of the Dc pump, I did finally read through some of the old post you wrote. I really liked the explanations you given, I'm also curios as far as bubble size going up the neck should i be seeing little bubbles in the neck at all and the foam start their or is the foam started below the neck and the water level never exceeding the the max water level line that BBK has labeled on the skimmer.
Just bought a mini 200 and was wondering what level of water everyone is running in their sump. Right now my water level is at 10 inches but was wondering if I should cut it down to 9 inches. Any input would be appreciated!
Glad to help. First, you really need to let the skimmer break in for several days. Once the slime coat builds up in the skimmer body and neck, the bubbles will change. That said, I run a wetter skim and tend to have the water level where water becomes bubbles just above the bottom of the cup. Much of that has to do with the amount of dissolved organics (DOC's) in the water. The more DOC's in the water, typically the lower the bubbles in the neck as the foam will build and rise easier. While I have a pretty heavy load in my 480g display with 60+ fish (many of which are large tangs), I have a lot of very well established live rock, a deep sand bed in my refugium as well as a lot of chaeto and a lot of soft coral. The end result is I have lot of biological filtration to reduce my nutrients. I also run four 7" filter socks to further reduce the DOC's in my water along with a good sized UV filter. As such, my nutrients are pretty low and I run my skimmer wetter to compensate. As mentioned above, every system is different. If I were you, I would start around 9" sump depth, set the pump to about 37-40 watts and let it run for a few more days before making anymore adjustments. You could adjust the wedge pipe if you want to increase the bubble height but things will change in the skimmer over the first 2 weeks making any adjustments you do likely only temporary. In my case, I fine tune my bubble height via my sump depth. My sump depth is managed by my float switches. If I raise them, then my sump depth is increased and if I lower them it's decreased. Even very slight changes in sump depth can make a big difference. Same can be said about the wedge pipe. My sump depth is set so that my wedge pipe is 99% open. If I make a wedge pipe adjustment, I only move it a hair. Like a mm at a time or less if I can. It doesn't take much to really fine tune things. Especially with the RD3 speedy pump which unlike the Chinese DC pump that can only be adjusted in a handful of increments, the Speedy can be adjusted in around 50 or more. This allows for some serious fine tune'ability! You just have to take it slow and only adjust one thing at a time so you get a feel for it the impact each adjustment (sump depth, wedge pipe and RD3 Speedy) does.
OK Slief ill be patient with it and make the small adjustments down the road youve really cleared up allot for me man, one last thing i see allot of skimmers that have the foam just crazy going over into the pot is this something i should see down the road as well i mean i know theirs allot of variables and tanks being diffrent but im just curious.
Thanks.
That depends heavily on the amount of DOC's in the water coupled with how wet you have the skimmer adjusted. The heavier the amount of DOC's the thicker and heavier the foam. The lesser the amount of DOC's the less thick and heavy the foam. Also, in an absence of DOC's the bubbles tend to burst at surface more as you don't get the same kind of foam fractioning. In my experience, it's the proteins or DOC's that kind of keep the bubbles or foam together. As such, a ton of thick foam is usually the sign of a lot of dissolved organics in the water which isn't usually a good thing in terms of water quality. Those that don't run a decent skimmer and setup something like a Bubble King that is really efficient will find that the skimmer will produce a crazy amount of foam in the short term and then settle in to a thinner foam as the skimmer catches up and reduces the amount of DOC's in the water. Once you get to know your skimmer and it's adjustments, you will get a pretty good feel for how well it's working and what's going on with your water quality in terms of dissolved organics in the water column.
I also forgot to mention that a brand new system will not have much if anything in the way of DOC's just like a system with a very light fish load. The end result will be a skimmer that doesn't produce thick foam and produces very little skimmate.
That depends heavily on the amount of DOC's in the water coupled with how wet you have the skimmer adjusted. The heavier the amount of DOC's the thicker and heavier the foam. The lesser the amount of DOC's the less thick and heavy the foam. Also, in an absence of DOC's the bubbles tend to burst at surface more as you don't get the same kind of foam fractioning. In my experience, it's the proteins or DOC's that kind of keep the bubbles or foam together. As such, a ton of thick foam is usually the sign of a lot of dissolved organics in the water which isn't usually a good thing in terms of water quality. Those that don't run a decent skimmer and setup something like a Bubble King that is really efficient will find that the skimmer will produce a crazy amount of foam in the short term and then settle in to a thinner foam as the skimmer catches up and reduces the amount of DOC's in the water. Once you get to know your skimmer and it's adjustments, you will get a pretty good feel for how well it's working and what's going on with your water quality in terms of dissolved organics in the water column.