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Hi, It's been a while since I visited here, mainly as I have been out of the hobby for a while, developing a new project for my reptiles, which might be of use in the fishkeeping hobby. It started last Christmas when I worked with a chap in the US to develop a pulse proportional thermostat...

The actual tube is fited inside a clear perspex tube, which fits in two small perspex cubes approx 1cm x 1cm x 1cm at either end. You can simply glue these blocks to the underside of your lighting hood using CA, epoxy or double sided tape. If you are really concerned about condensation then...

Well I think I found the reason. The line from the CO2 unit was full of water. Now this could of happened when I took the unit off for changing, or it could of happened overnight the day before (I have a one way valve in the line to stop the water entering the CO2 unit). If it did, then the...

For those that don't know our tank is built into the wall and is accessable via a cupboard under the stairs. For the last couple of days I've noticed a smell in the cupboard, and today it was exceptionally strong. Without wishing to offend, the smell was as if someone had passed wind having...

I must be getting old... I couldn't understand a word the guy was saying :blink: Thought it was Russian or something :)

Thanks for the info, I was always under the impression that it was the airobic bacteria that formed in trickle filters that reduced nitrate... thank for correcting me. Given the tank is already well established, and I use a fermentation CO2 system, a sump filter is not the ideal way to go for...

How difficult would it be to make something like this: I'm mainly concerned with the overflow skimmer, and the other item is just a box which should be simple enough for my limited skills :)

Found a link on a different forum with some really cool info Here have a look ! I like the look of this design for the syphon device - comments please :)

The question was in the sub-heading :dunno: Some interesting discussion on the priciples of syphoning. I don't thing having two pumps is a viable option, as even without pump failure you would have to have two pumps with exactly the same flow rate so as not to have problems with under / over...

Errr.. no sorry. Most of my (limited) experience has just been with Microchip devices Malcolm

Hi, I'm currently using an Ehime Ecco 2233 (3 compartment) external filter to maintain the filtration of my 100 ltr (net) tank. The tap water here in Hertfordshire (uk) comes out of the tap with a Nitrate level of 40ppm (actual water board stats report it at 38ppm), so I was looking at making...

One of the programmers I use is home made, based on a JDM programmer. The other two programmers are commercial ones. I must admit that I'm not that good on the programming and had a mate (mentor) to help me work things out with this thing. Most of my PIC projects have been simple things like...

OK lets see if this works :) This is the PCB I made housed in a small black box. The two LEDs provide a status of the sysem. When the main lights come on the Green LED comes on 5 seconds after to show its armed, then when the CCT lights are on the Red LED comes on and the Green LED flashes...

Thanks for the welcome. Interesting idea that, maybe for a next project or MKII version of the existing project. Re uploading images, I take it that, unlike other forums you can't attach images to the post, you have to host them elsewhere and copy the URL in to the post using the IMG button...

Hi guys, I'm a newbie here and thought I would show you the twist on how I use my cold cathode lights. I built a little timer, with a light sensor. This detects when the main lights go off (use a normal plug in timer for the main lights) and then runs the night lights for two hours before...