What about putting it on one of those coffee cup heaters? You would need water movement tho to circulate the water but


Idk lol just an idea

Just saw a betta bowl heater at a lfs. Not sure if it'll fit your jar or how it'll look.

Check out:
Zoo Med Laboratories AZMBH10 Zoo Med Submersible Betta Bowl Heater 7.5 watts

use an overkill sump. connect a teensy overflow and you will have temp, water movement and clean water under control.

Small reptile heat pad on a dimmer to control heat and why not have or make a tiny air stone bubbler for water movement.

I would think if your just doing zoas and mushrooms that you wouldnt have to worry about temperature. Room temperature will be more than fine for simple corals. Just my opinion, but i wouldnt even heat it at all. I suggest advil extra strength gel caps, for the headaches about to come your way :mrgreen:

You can do a lot in a pico. Just keep up with water changes. I highly recommend you do not put sand in the tank. A heater is not needed unless you keep your house especially cold. Depending on what pump(s) you use they will provide enough heat.

Here is my 2 gallon (8x6x8) it's been running over 4 and a half years. I use a par 30 for lighting.

http://andrewastro.smugmug.com/Other...tsdec29-X2.jpg

That's amazingly awesome.

here is the best idea for heating pico tanks
small Waterproof Heating Pad that you can put under the jar or wrap a part of it.
http://www.ebay.com/itm/12V-Waterpro...item4ae3f291bb

If your place is always room temp or above, I wouldn't even bother with heating. I have no heaters in my nanos.

Tagging along