Advice on 75 gallon setup

clintrandall

New member
I would like your input on a few things as I prep my 75 gallon acrylic to replace my 50 gallon glass. This is a little long, but this is also the 4th time I've switched tanks in the past couple years and I'd really like to set it up right this time and leave it be. I'll start with what I'm doing and what is outside of my budget so that you know the framework I'm working within.

It is a 75 gallon long with an overflow chamber across the entire length of the tank.

OVERFLOW: There are overflow teeth on one end, but I'd like to cut teeth into the other end as well to assure that the surface doesn't build up nutrients on the far other end.

I'm planning on doing 3 drains with stand pipes. One will go to the fuge with a valve to control flow as I want it, one will go to the skimmer sump (which the fuge will overflow into) so I can somewhat control that, and one will go to the return sump so I can up the overall overflow rate as I need. I will have a single return pump split into two returns at each end of the tank.

PLUMBING: I'm planning on a ball valve on all 3 drains and both return lines. I think I'll do the valves with union joints on the ends so that I can shut off the valve and remove the plumbing if needed.

COOLING: I'm not doing a chiller because I don't have the space and I don't want to rely on one. I also needed the money by selling my 1/4 hp. I'm planning on hooking up two fans in the canopy and two fans in the stand (to keep humidity down). Can someone post some easy to follow instructions for a clean way to wire some of those computer fans? I tried it and ended up frying my fans.

FLOW: I'm going to rely on two returns and two Seio 1500's. My 120 got so hot from having 6 pumps in addition to the return and skimmer pumps so I'm keeping it down.

QUESTIONS:
1) I always run into the issue of how to return water without splashing noises. Is there a recommended way to return water without it gushing from PVC right into the sump?
2) As I said about cooling, I'd like some specific instructions for setting up some computer fans.
3) Regarding the overflow, is it best to have it overflow from one side or should I do both? Should I put teeth all along the back?
4) Regarding the refugium, I've had one with a couple inches of sand and a floating clump of chaeto. I have a standard Home Depot 6500 k flourescent light over it. I've never really noticed a lot of growth in the algae and I've always had trouble determining the best flow through the fuge. What do you recommend?
5) On my last tank, I did the foam back wall. It looked cool at first, but after a while it started to separate from the glass and I had problems with insane hair algae growth on it. I eventually removed it and saw there was a ton of algae on the back. I just found it a nightmare to keep clean once it got dirty. Anyone else experience this?

That's it for now. I'm currently using an ASM G-1x, which I'd love to upgrade to an ASM G-2 if someone wants to work out a trade/sale.

Thanks in advance for any input! I'm looking to do this well, but unfortunately I cannot afford to add calcium reactors, UV, phosban reactors, etc.

Peace!
Clint
 
2) figure out how many fans you want to run. Get an appropriate sized 12V power supply. I'm running 4 120mm fans on a small 12V power supply that I picked up from Frys. Its pretty simple to wire up.
 
So you run 4 fans on one supply? That's what I'd like to do, with 2 in the canopy and 2 in the stand.

I'll get pics up Ryan. It's not too complicated though. It's a 75 gallon long acrylic with a 3"-4" deep chamber running the entire back wall of the tank. There is currently a 6" span of overflow teeth on one end.
 
I have a suggestion for the splashing noise in the sump. I ran my PVC alll the way to the bottom of the sump and then added a U to it and then back up almost the the surface. This took care of any adn all splashing noises.

Ed C
 
I wish I could claim credit but I got the idea from Buggles set-up and yeah it goes do allot to help with the bubbles as well. Good Luck!

PS. I have a 30gal tall glass you can have for a sump or a fuge
 
Wow, that's really generous. I don't think I'll have room in the stand though. I've got a 15 gallon sump for the skimmer and one that is baffled in the middle for a fuge/return setup.

Thanks a lot for the offer, but there's just not a lot of room in the stand to fit it all and a 30 tall would be mighty crammed!

Clint
 
PC fans are pretty easy to make, I actually had on there. You just need a 12DC power supplie (check out your old phone chargers, and things like that. That is where I found mine). Then just cut the wire and connect it to the PC fan(s). I would run the return over the top and through the openings (the larger rectangle ones). Then you dont need to bother with an overflow pump from the back to the front.

As for cutting the second overflow, I would use a dremel, shouldn't be too hard. Also, I would leave the teeth on the overflow because I ended up with fish getting into the back (including an eel that I had, it was a mess :rolleye1: ...)

Good luck with it, post pictures.
 
Thanks Max.

I had a blue ribbon eel several years ago - before I really researched reef tanks - and he got over a small little overflow, through a 3 foot chamber of bio balls, and right into a large pond sump pump I was using for my return. It was terrible! I got home and saw little pieces of what looked like white plastic all over the tank. The pump had fried too because his skin was so tough that it wrapped around the pump and froze it. That was my first great reef tragedy!
 
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