Please excuse my lack of tropical knowledge, I'm more used to coldwater tanks. I have a tank of Harlequin Rasboras and over the last couple of days I've watched them spawning, something new to me. I've watched a couple of videos on YouTube and seen them spawn on the underside of leaves. Unfortunately I have no leaves as such in the tank and they've been performing their upside down routines on the roots of Frogbit. I have to say when I first spotted them I thought they were ill. The eggs on each occasion have been quickly gobbled up by the other Harlequins in the tank. Is the spawning behaviour something that happens all the time? Any help would be most welcome.