Reef Discussion

holla_passer

Member
Oct 3, 2011
139
68
Sydney
The DIY Tank Cover
If you have followed my tank journal, you will notice that I have lost quite a few fish to carpet surfing. Finally having had enough of this, and also wanting to maybe one day keep some sort of wrasse (renowned jumpers), i decided to put together a mesh cover for the tank. obviously it would ruin the whole 'rimless' look of the setup, but it was a sacrifice i was willing to make.

The cover had to be made under three conditions:
  1. Had to be cheap - preferably made from materials available at home.
  2. Had to be minimalistic - i did not want the cover to be too obtrusive and take away from the tank. I wanted to make it as small as possible.
  3. Had to be easily removed or opened/closed for when access into the tank was needed.
Below is what i came up with.
For the mesh, I had nothing suitable at home so i used a product i found at bunnings called 'Tree Tubes'. It is a plastic based meshed with approximately 5mm holes - cost about $5. The original mesh is black in colour but i sprayed mine white.
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For the frame, i used 12mm aluminium angle framing that i had lying around in the shed. It was perfect since it was light, and also quite thin, so i wouldn't end up with a big fat frame on top of the tank.

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I used mitre joints to put the frame together and then used some liquid nails to glue the mesh to the underside of the aluminium. I then glued some white plastic over the mesh so as to 'sandwich' the mesh between the aluminium and plastic.
ai92.photobucket.com_albums_l23_howeface_DSC_5056.jpg

So far, i had satisfied conditions 1 and 2. Condition 3 was the one that had me stumped for a while. I wanted to make a simple modification to the cover so that it could easily be opened and closed. So instead of using the aluminium angle along the back of the frame, i used a length of irrigation rising tube:
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I glued the tube to a couple of plastic clips that would clip onto the glass edge of the tank.
ai92.photobucket.com_albums_l23_howeface_DSC_5052.jpg

I then drilled a hole in the aluminium frame where it would line up with the hole in the tube.
ai92.photobucket.com_albums_l23_howeface_DSC_5053.jpg

I then used 65mm galvanised nails as the pins of the 'hinge' and these nails would fit through the hole of the aluminium frame, and into the centre of the irrigation tube.
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The cover has now satisfied all three conditions.
However i added a last little touch which would make life much easier. When the cover was to be opened, i would need one hand to hold it open. so i installed a little magnet on the frame, and a metal plate on the underside of the light canopy so that the cover would hold itself up, freeing up both my hands to do whatever i needed to.
ai92.photobucket.com_albums_l23_howeface_DSC_5033.jpg

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Hope that helps!
 

Agent M

Member
Oct 21, 2011
3,536
1,586
Melbourne
Looks great! I have been thinking about doing something like this, but I am curious as to how much light is blocked from getting through?
 

holla_passer

Member
Oct 3, 2011
139
68
Sydney
I tried my best to make the mesh as tight as possible, but since it comes in a roll, it was hard to get rid of the bends in it.

As for blockage of light, as i mentioned in my TJ, there is a little bit of lost light, i think mainly because the mesh is white, so some of the light gets reflected off. But i wouldn't say that there is a significant loss of light at all.
 

Josh M

Member
Dec 23, 2011
1,432
380
Dubbo
Would fibreglass fly mesh block more or less light do you think ? I've been thinking about a very similar design but using fly mesh .......
 

holla_passer

Member
Oct 3, 2011
139
68
Sydney
I think since the holes in fly mesh are much smaller (like 2mm or something like that), it would block a lot more light. If you already have some of the mesh available just hold it over your tank and have a look to see how much light is lost.
 

NiCd

Lead Moderator
Jul 29, 2011
4,296
1,586
Sydney
man you are the DIY king of nano reefs. keep an eye on the gal nail as it may act as a sacrafical anode
 

holla_passer

Member
Oct 3, 2011
139
68
Sydney
man you are the DIY king of nano reefs. keep an eye on the gal nail as it may act as a sacrafical anode
Hahaha thanks man, its only coz I'm too tight to go out and buy stuff haha. But yeah, I'm currently looking at plastic alternatives to replace the gal nail. any ideas??