Awhile back I ordered a cheap little heater from eBay, $13 free shipping, it arrived today.
It says "explosion proof" Carbon fibre 230v 16w preset 25c -/+ 1c. Came with an Asian plug and I couldn't find the same model with au plug.
Quite a nice little unit with indicator light,
Red= active heating.
Blue= At temp.
I got a $50 Bunnings gift card for my birthday but can't be bothered going anywhere today to buy a new plug, So I found an old 2 wire power cord and some insulated 250v screw connectors and wired it up like this for now, Still a fully safe stable connection and would be fine to leave as is, but I'll get a plug one day soon.
Brown to brown, Blue to blue- pretty simple, sometimes old wires use different colours, tbh the polarity hasn't seemed to matter on any of the other non earthed 2 wire devices I've used, but it's still a good idea to just follow the colours there.
Ensure the wires are clean and making solid connection, and the screws are tight enough to hold them securely in place.- don't leave bare wire hanging out. Also make sure the connectors are 250v rated as some aren't.
One of the suction cups came broken, I'll tell the seller, but for now I just replaced it with a spare I had, The suction cup that wasn't broken looks really good and holds the heater very well, all in all it actually looks like a very well made unit, very clean and tidy, nice construction.
Installed, plugged in and operating fine, will have to monitor it over the next few days to see how it holds temp, it's in a 15L tank holding about 10L of water.
Minimum temp in that tank through winter has been around 15c, This heater is replacing a faulty aquaone heater I was able to get a refund on.
So far quite impressed.
I bought 7 RCS for my 2.5 gal tank yesterday (no filter/heater). I also have a marimo ball as well as some java moss. I was wondering if this no filter set up is okay for my RCS? This morning they were acting less active than yesterday. They weren't picking at the marimo ball or anything, and were all just standing still..