no room for scrubber in this setup

With stubborn algae the key is to starve it. Any nitrate and phosphate released in the DT needs to be immediately neutralized. Can't wait until it theoretically reaches the sump because the algae grabs it before it gets to the sump.

ahhhh ok. I don't believe it has to be in the same sump, just connected on the side :biggrin:

Makes sense. i'll give that some thought.

Can't really, little kid loose in the room, wife wouldn't be happy. Anything I do has to be contained within the stand.

What about Lettuce nudis? Tech M didn't work for me either. The nudi made it disappear, until one day there was no more bryopsis and it died :(. That could at least give you a second option of control while you try the Foz Down VV method

I have about 12k GPH of flow in a 100g cube, not sure they would last long without hitting a pump :)

Anyone got any good plans for a DIY NO3 reactor?

I had an 80% breakout of red fuzzy algae in my 100 gal tank. I used Instant Ocean's Nitrate Reducer with pretty good success. I still have a little of it but I can't scrub it off the rocks. I have to let the IO NR do it's thing - at a double dose. It took a year. When it dies, it turns orange and then I can toothbrush it off.

At that point I had PO4 spike and used FozDown to reduce it. I think a combination of methods would be best.

Using IONR puts the micro beads into the rocks where nitrates like to hang out, raise big families and grow luxurious gardens.

AquaAddict

Have you contacted monocus about this yet? he has built 2 of them for me; I honestly believe they have helped a lot on both tanks.