Sump update:
- pic of the bubble magus qq2 in 2nd chamber
So a little exposition here...
The new skimmer is doing pretty well so far. It's taken over from the Skilter 250 (w/ airstone mod), and while the container is smaller, I think it's skimming just as efficiently.
A couple of issues have come up now though, most notably there are dinos and maybe some fuzz algae growing in the first chamber of the sump (refugium). From what I researched, dinos are fed strongly by ammonia and possibly can't use nitrates in the water (once ammonia is converted to nitrates). So what I am thinking is that if I can increase the nitrification efficiency of the sump in the second chamber (skimmer/bio media), then I am reducing micro algae and dinos' time to use ammonia before the ammonia is "nitrified".
So to increase the nitrification, I added a maxi jet 400 power head (not propellar mode) to the second chamber, so the water in that chamber is getting almost violently agitated. This is accomplishing two things, it's trapping the micro bubbles that are spilling out of the skimmer in that chamber for longer and the flow is giving the bio media better access to that "aerated" water instead of the water just spilling over into the (final) return chamber and going straight to the display.
To further increase nitrification I may need to overhaul the biomedia itself (take it out and optimize the space to allow better flow underneath and around it) and to prevent detritus from accumulating in that chamber.
I am somewhat concerned that the increased flow in that chamber may adversely affect the skimmer/skimmer pump, but that's only something to watch out for right now. It may end up being fine.
The final overhaul to the sump that I need to do is to increase the flow in the refugium chamber. At this point I am simply using a 1/4" hose plumbed off the return line that feeds back into the refugium to generate flow, but I'm not sure if this is a long term solution. To determine if I need to add another flow generating device, I'm first going to manually remove all the microalgae/dinos/fuzz algae/cyano/whatever from the refugium chamber and see if it keeps coming back. If it all comes back by next week, when my new snails arrive, I'll add either a powerhead or a HOB filter to the refugium chamber (aqueon 20).