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The payoff in scrubbers is food...I'm putting way more in than before, but I guess that's already an established industry. I guess that leaves additives for more growth, but then that exists also. ...

I'm thinking about adding vinegar to my mix of kalk after reading through this and the articles. Currently I add kalk and RO to a clear RO canister that I added a pipe to the center inlet to force...

It should be fixed now...late night, long weekend, sorry :)

Interesting timing…

This weekend I pulled out my old 55gal sump with a rigged CFL scrubber and replaced it with an acrylic sump modified with a built-in LED scrubber. Already this thread has...

Ace, I may have missed this. Did you add the blues to the same driver you were using for the reds? If so, wouldn't this reduce the current to all LEDs? Unless you had the REDs dimmed down before...

Any idea what the shelf life of the sodium alginate is, or if it has one? It costs the same to ship the 3oz and the 1lb, $10 shipping for me, but it's going to take me a really long time to go...

Looks like algae (turf?) to me. Also, where did you get those rocks? It looks a lot like the 200lbs of landscape rock I just pulled out of my tank. It was hemorrhaging phosphates and I had the...

Wow that's a great deal.

Does the packaging have any detail on color temp. From what I found online it looks like they're 6500K which is kinda high for a scrubber.

The sides of your screen aren't getting any flow because the notches you cut in the top sides of the screen. From the pictures it doesn't look like the slot cut in your pipe even covers the sides of...

Keep checking your nitrates. I've been running a scrubber for almost 3 weeks now, and I'm still running my skimmer. My nitrates have been pretty steady at 20 and no water changes. When I start to...

It looks like your idea should work.

The other option you have is to T off the drain with a union and a couple valves instead of having to use the RIO.

I would start with the RIO 1400 first and see how it works out.

The reflectors you mentioned are good and wide, but 2" from the screen is too close and will burn the algae, 4-6" is where you...

Voted! ...so far it's leading.

Save your money...with flow, lighting, and the nutrients in the water the algae will grow. I started mine a week ago and I have light brown over the screen with specks of green starting.

Vertical...

Here' some updated pictures after running it for 5 days. Those are two 40w bulbs, and I'll be adding to more 23w this weekend. I don't think I can get another 40w on each side...those bulbs are...

To get rid of the micro bubbles do a search for "herbie overflow". The design needs two overflows, one is used to create a full siphon which allows no air, so no bubbles, the other is used as a...

I thought that the highly oxygenated environment created by the water running over the screen was an essential. Wouldn't a full siphon and a sealed box really reduce that oxygen rich environment? I...

Oh one more thing, I didn't read everything thing here, but somewhere in my reading today it was noted to use gate valves instead of ball valves to do this. Definitely go with gate valves. Fine...

Well it seems you've hashed it out, but I wanted to add one thing that may be obvious to you but wasn't to me at first. I wasn't able to fully implement this tonight because with two separate over...

What timing...I was just read that thread on RC looking for a way to reduce bubbles/noise in my sump coming from my overflows. Right now I have a sock trapping bubbles, but I want to remove it when...

I like the duct tape. Are you using it as a splash guard or to even the flow out across the screen? I ask because I need to do something to even the flow out across my screen.

That's the type of reflector I went with. Here's some pics. The reflector is an 8.5" from lowes, and I wasn't sure it'd fit on the far side, but it does, so I'll be adding another one to the near...

Well, I've managed to find enough room to get a 18"x10" double sided scrubber plumbed in. I'm still working on mounting the lighting. I have enough room for a single 40w bulb on each side. I know...

I was wrong. I messured and I can to a 10"x12" screen. I still think I'm going to do two, with both sides lit...too much? Still questioning the light bulbs I should use. Hopefully I can find some...

Thanks for the quick response.

I had a feeling that bulb was a little much. I guess I was just trying to over compensate the wattage, but I didn't think about spreading it out with smaller bulbs....

Greetings all.
First of very cool site and great info!

Background...I have a AGA 180g display (dual overflow each rated at 600gph) with a 55g divided up for a sump. I've needed to redo the...