Hi. How are you?
I have some chaeto algae in a 20G High refugium that isn't really growing. There are plenty of nitrates for it to feed off of, the two things I want to improve on mainly are lighting, and "tumbling"
Right now, I have a regular clip-on desk light with one of those "energy saver" light bulbs in it. It seems to be growing some nice brown algae along everything that light touches, but the chaeto could be doing better. If I can remember I'll post a picture of the setup when I get home tonight. I imagine I need more light intensity here. What type of lighting to people use on refugiums like this to best get the light to the macroalgae? The main problem I face is that usually the water level is about 1/2 full in this refugium tank (about 8" from the top) but if the power should ever go out, it might fill up almost to the top. What wattage should I be aiming for here?
Next, how would I set up a powerhead in this tank to best achieve the "tumbling" effect people talk about with chaeto? I've tried a couple of things but I haven't gotten much to work. In fact, I've never seen this effect and I'm not really sure how it works, i.e, what it's supposed to look like when it is "tumbling." Any info on this would help a lot. Thanks,
Have a nice day.