Wet/Dry Design Check - 220 Gallon African Cichlid Tank

  • We are currently upgrading MFK. thanks! -neo
What I did was set the plastic light diffuser on top of the bioballs to make a flat area, then took a 1/8" clear plexi piece and cut it to size, then drilled roughly (400) 3/8" holes through it. What I dont like is how it will allow water to go around the sides since it doesn't have a pan shape or a rib around the edges. I'd think most of the water is going to flow right around it even though it's a fairly snug fit between the baffles.

Just get some pieces of plexi the right size and put a 1" edge around the drip tray so the water has to flow through the holes. If you have a look at the pic I posted before that is exactly how mine was set up.
 
I've finished the wet/dry based on several of your recommendations. I'm happy with the filter except for one part.. The trickle area above the bioballs. What I did was set the plastic light diffuser on top of the bioballs to make a flat area, then took a 1/8" clear plexi piece and cut it to size, then drilled roughly (400) 3/8" holes through it. What I dont like is how it will allow water to go around the sides since it doesn't have a pan shape or a rib around the edges. I'd think most of the water is going to flow right around it even though it's a fairly snug fit between the baffles. Would it work well if I stuffed tons of filter floss/sponges around the edges? I know it wont be water tight, but it'll slow it down at least, right?
I went around home depot to get some other ideas too.. I came up with a PVC shower liner that comes in a roll. I could drill holes in it but am wondering how to shape it to have a bowl so that all of the water goes through the holes as a "trickle".
Thoughts?
View attachment 901275
So I'm using:
- 75 Gallon Tank
- (4) 7"x16" Filter socks (100 Micron)
- 15 Gallons of bioballs
- PVC frame to hold filter socks up
- PVC frame to hold bio balls 2 inches up


It's probably overkill on the filter socks since I'm looking to run about 1000 GPH, but I'm hoping I wont have to worry about them getting backed up very often.

Cool sump!

My only suggestions would be:

1. Find a way to lower the filter socks so that in the event that they do clog up (which eventually they will), you won't have to worry about water splashing onto your floor. The rim of the sock, should be below the top of the sump.
2. I recently saw a thread where a guy was running into the same issues as you with water running down the side of his trickle filter sump. He tossed the acrylic sheet and instead cut a sheet of plastic shower liner drilled with tons of holes and problem solved. It's not quite as pretty as an acrylic sheet, but it's a filter, so who cares? If you don't like this idea, s was mentioned, it would be pretty easy to weld some walls onto the trickle tray.
I found the thread: http://www.monsterfishkeepers.com/f...ip-Tray-(Wet-Dry-Sump)&highlight=shower+liner
 
Thanks everyone for the info so far.
Aldiaz33 above mentioned someone using the shower liner film. I bought some the other day because I like the idea, but i saw the thread where someone used it for his wet/dry filter but decided not to use it with his fish because he wasn't sure if it leeches chemicals into the water or not. Does anyone know if someone has sucessfully used this?

Shenlon,
Since getting feedback from people on the forum I decided to raise the bioballs a bit higher so that less were completely submerged under water. I currently have it at 17.25" x 10" x 20". That's right around 14 or 15 gallons of bioballs.
 
One other thing, pre bag your bio balls as the day will come where you need to clean the area below the balls. When that day comes you will not have to deal with all the balls and moving them, rather just a couple of the bags of balls.

I had a mag drive 18 going on my 180 and liked it. It came with the tank so I didn't look around much but thumbs up from my experience.
 
I would also suggest lowering your filter sock holder below the top edge of the the sump. That simple change will give you lots of peace of mind and would be worth the effort.

Also, I might suggest raising your bio-ball area up off the bottom of the sump a little. The bioballs work best when about 2/3's of them are above the waterline of the sump hence wet/dry. Its a little hard to tell from the picture but it looks like its pretty low and that your water line would cover most of the balls.
 
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