I'm looking for a small clip on light for what will be a planted shrimp tank. Can you guys recommend a good option?

If the tank is 'planted', than you need something rather more powerful then plain old LEDS, like the kind you see on cars, under kitchen cupboards etc. Most cheap clip on lights you see in LFS and on the net will not actually support plant growth at all.

TMC Grobeams are good for smaller tanks (under 60 litres) but don't faint now, they come at a price I'm afraid, circa £70, depending where you shop.

http://www.aquacadabra.co.uk/GroBeam-Freshwater-Lighting/

Until proper fishkeeping LEDs become more affordable, tubes are here to stay for now.

Have a look at the Arcadia range though (tube based). My Betta tank faired OK with one of these but with only low light plants, anubias etc, might not meet your needs

Let me see if I can find a link. Back in a jiffy.

Edit: here you go, check out the plant pro models You would just need to find a stockist.

http://www.arcadia-uk.info/product.ph ... 4&mid=10&lan=en&sub=&id=4

Double edit: ahhh, we all clashed with the same thoughts over the next few minutes or so. Thanks Dave

I didn't think a normal light would do it! Thanks for your help, will keep looking for something a cheaper.

How big is the tank? The Arcadia ArcPod and Ellipse are very good, there's 9W, 11W, 18W, and 24W versions. The tank size will determine how big a light you'll need. I've used an 11W on a 30L and a 60L and that was more than adequate for the easier plants (moss, Java Fern, the less demanding stem plants, etc). If you started using a high tech set-up with CO2, and dosing fertilisers you may need the more powerful one. (They are bigger though, so a 24W tube might not fit over a small tank properly).

It's 15l, just growing plants in there until I can get a bigger tank before I get the shrimp probably around 30l, just want a few plants with some established growth to put in the new tank.

Either the 9W or the 11W would be fine then. While I bought the 11W, I think I prefer the shape of the 9W ArcPod. Its easier to work around and still illuminate the tank.

This may sound crazy but you can buy a nice ikea clip on desk lamp and a 13w full spectrum spiral bulb.

I have:

linky

and

linky

Both work perfectly with the rather pricey full spectrum bulbs off ebay. The first one is particularly good because you can move it closer and further away from the tank to get exactly the light level you need. You can use any desk light as long as it will take the bulb and you can position it right.