Shaggydan

Hi I have found some usefull info on this site about the thickness of glass in a tank. and have been wondering if any one knew what was required for a tank that is not all glass. 3 meters by 3 meters by 2 meters with four 1500mm by 500mm windows. I was thinking of having a wooden frame lined with fibre glass. but i can think how i would seal the windows on or whats safe or not.

Bright leds can cost but i found a good cheap supplier http://www.computronics.com.au/module/y5w20k/

I have been thinking about doing this my self. Unfortunatly i do not have a land lord that would let me plumb thru the floor to the tank. My idea was to have to sensors in the tank and a timer system so the tank is pumped/siphoned out perodically. I found a way of makeing a simple diy sensor on this site. http://www.elecdesign.com/Articles/Index.cfm?AD=1&ArticleID=4651 This curcuit is setup slightly different to what you are after but can easily be modifiyed. So that when your timer goes off the tank drains to the bottom most sensor then the tank fills untill the upper most sensor. By haveing a tank of pre mixed water you could just fill the mix tank every month or so. or right from the tap or filter. You would however want to have some redundancy in the system so extra sensors and some normally closed solinoid valves would be a good idea. If you are keen on trying this approach i would be happy to help with the technical side of things.

Hey all My old 1200mm by 400mm by 400mm tank began to fall apart now I have all the glass left but no idea how to rebuild it. I Have googled around a bit but haven't really found any thing that helpful can any one give me some advice on how to silicon all the edges in place and seal it up. Thanks

Hey does any one know where to get metal halide fixtures from cheap? I'm trying to find a couple of 250w lamps. And what sort of bulbs would you recommend for a planted cichlid tank.