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A few months ago, I lost a lot of shrimps due to high temperature (around 32°C). So I decided to make an aquarium chiller for my nano (20L). My requirements were : - Noiseless - Able to reduce by 5-7°C a 20L aquarium - Economic electrically - Part of the canister filtration system (no visual inconvenience) - Not pricey (under 100$) - Shrimp compatible (no copper used) Becarefull : Aluminium is used to "exchange" the heat. It can be toxic if used in pH below 5.3 During my initial research, I found this interesting article : http://www.shine7.com/aquarium/chiller.htm I changed the peltier module used, here are the calculation : For a 400W Peltier, if I have 4.9V in input, and the local temperature is 32°C, the temperature of my 20L aquarium should be 24°C for 40W used. Here are all the needed parts : - Peltier module : TEC1-12726 (50x50mm 400W) around 20$US - Aluminium Water cooling block (76x68x8mm) I prefer this one over the classic 50mm one because it's bigger so better thermal exchange - 12V 240W Power supply (transform AC to DC) - 100W LED driver (0.8-28V output) (adjust the tension on the peltier module) - 2 Fan speed controllers (3A DC-DC step down converter) - 12V Thermostat (the chiller is working only when it needs to) - Heat sink (Noctua NH-D14) Based on http://www.frostytech.com/articleview.cfm?articleid=2789&page=4 , this heat sink is perfect - A 50x50mm copper sheet to make the connection between the heat sink and peltier module. The peltier is bigger than the heat sink base, so I thought it's better to have this sheet to reduce the heat of the Peltier - 6mm silicon pipe (it's the diameter of the water cooling block) - 6=>12 water pipe coupler - Thermal paste - Electrical cable All the parts together : The total cost is around 100$US (greatly depends on the heat sink, i bought mine 2nd hand) The final build : Just started to make some test, it's working perfectly! The only drawback is that it reduce the outflow of my canister filter. If you have any questions :)

Thanks for the wraps guys, and definitely be sure to redeem your Skf discount @Chickini!! I also exclusively use rainwater in my tanks and remineralise with salty shrimp. I mainly use gh+ as majority of my tanks are set for crystal/TBs and cherries can adapt. But if wanting ideal parameters for Neos then the GH/kh+ is the one. We have a 3000L plastic rainwater tank, I had it for a couple of years prior to using it on tanks. But I find TDS fluctuates from 4-10 depending on time of year and rainfall amount. Thankfully this year has turned out to be plentiful.

Hi @Mitch91, I have posted this previously on another thread: Johnlen thermo-electric chillers are cheaper than the older -type ones, and they are extremely light on electricity. I will find the old post where I worked out how much it cost me to run the chillers per quarter ( it was the price of a few coffees- seriously!) It gets 40 degrees here in Canberra and I have two running permanently in summer on my large tanks ( 130 litre tiger tank and 240 litre PRL tank). They are also not as noisy as I expected them to be, and their temperature control is very accurate. I cannot recommend them highly enough ( no I don't work for them!?)

Hi all, i picked up two more species of geos last night firstly is the red humps Cheers mick

Interesting I love seeing what others are feeding their shrimp, great pictures.

Mention SKF and I believe you get 10% off !! Seriously ... enter 'skf1' (all lower case) in the coupon field and then click redeem. You get 10% off. That's why we recommend our sponsored retailers. That and the fact that they are all the best places to shop for fish or shrimp goodies.

My second and third aquarium I established at my work. First idea was to have some other aquarium, where I will store outgrowing plants from my first aquarium, because I don't want them put to the bin, but result is totally different. My second aquarium volume of 50 liters and it was my first try of some kind of aquascaping. I just wanted to have a eye-pleased aquarium, where you can relax and calm down after a stress at work - for me and my colleagues. I decided to have there only one colour of N. Davidi and one colour of Taiwan Bee. So after 2 weeks from aquarium start I bought N.Davidi - Topaz Blue and after one month TB - Pandas. Main fishes for this aqua are 16 Boraras brigittae and 2 Otocinclus. My third aquarium is 30 litres and was established from excesses from second aquarium. I have there now N.Davidi - Green Jade and TB - Red Wine. Main fishes for this aquarium are 15 CPDs and 2 Otocinclus. I came to this forum for searching informations about breeding, diseases, etc and everything around shrimp keeping. Odoslané z LG-D855 pomocou Tapatalku This is a photo of my second aqua and Pandas. Odoslané z LG-D855 pomocou Tapatalku And photo of my third aqua and Red Wines. And Green Jade Odoslané z LG-D855 pomocou Tapatalku

Sounds like we have a few SKF members attending on Sunday 17th and a few interstaters on their way across/over/down for the event. Look forward to seeing you all there. Will make sure there's photos and hopefully even vids of the event to post. ?

If anyone is considering entering shrimp, the cut off to register is this Sunday. ? Interstate postal entries accepted, and shrimp entered can be auctioned on the day if you do not want them shipped back. For those who can attend on the day, there will be some stunning shrimp on auction, sensational sponsor special offers (lol), and just generally a great opportunity to catch up with other shrimp folk. Look forward to seeing some of you on the day!! ?