My conservatory tank contains 3 Spine Sticklebacks and a plec, the 3 spines are very interesting fish to keep and observe already breeding after only two weeks of captivity, and are very tame,feeding from the hand.
Correction! I did have a plec, but the sticklebacks  ATE IT!
So be warned. DO NOT keep any other fish with sticklebacks

I do not recommend more than one male and maybe 2 females to a tank, as they are VERY territorial when breeding.
Since making this page (July 2001) I have returned the sticklebacks to the local dyke, in very fat breeding condition ! This was due to the thought that I was being cruel as they were attacking each other due to the cramped space (for a wild fish). I had 18 in a 3 foot tank. They certainly paid for thier food with the pleasure of studying them.
Link to New page on tropical tanks since set up
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