Fascinating..........that's one side effect that I never would have guessed.....so when they fire up in reverse does it cause water to splash up and over the glass at all?

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No, the back of the pump inhibits that. The reverse flow isn't all that great either, it's not like it's going to suck in a fish or something. What a bummer! For a day I thought I was like some kind of briliant modifier guy, but it turns out that I suck.

LOL......how about if you shortened the air line a bit, then added some kind of rubber washer or something on the other side of the impeller to cushion the clacking on start up?

In fact I think mine came with a rubber bushing that fit over the bottom of the impeller (I lost them down the drain wile cleaning)

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Hmm, it might just work. I've since lost mine too, if it came with them at all but I think I might have something that would work.

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The weekest link in my system up until now has been my piddly little refugium / joke of a frag tank. Well, no longer. I picked up an old hagen tank from the basement of the LFS and fixed it up. I took the top trim off and added glass bracing instead, then I drilled it to house a 1.5" bulk head. It's 30x12x15" and fits quite nice in the cabinet right beside my sump.

http://i50.photobucket.com/albums/f3...t/IMGP3991.jpg

Holy crap there were some serious micro bubbles floating through this tank. Solution: I have an old overflow box with built in baffles. I hung it on the inside back of the tank and ran the drain into it. The results were about 90% lesss bubble, which is tolerable for a frag tank.

http://i50.photobucket.com/albums/f3...t/IMGP3992.jpg

I still might mess around with the frag rack a bit to create more room for the abundance of frags I plan on making soon. I just hope that the 4 T5's I have over the tank will be enough to sustain my SPS frags.

Danny

Pretty innovative dude. Liking this tank more and more with each gadget add on:razz:

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I know, when will it stop eh? I had to do this one though, the little bin I had before was a detritus trap and didn't have enough room in it.

Yah I just finished reading back on this thread, that new frag tank is alot better than the one that you had....kinda uses up alot more space underneath now so that may limit future toys but it looks alot more presentable and is much more functional.

nice looking frag tank man, one heck of a step up from the last one. Were did you move your macro algae to? it was in the old one wasn't it?

I don't think you should have any issue with SPS frags under thows 4 T-5's