It is an eclipse natural daylight flourescent bulb that I just started using a week ago! I had been switching back and forth with a Wally World Plant grow bulb for 3 weeks before that. The tank is very. VERY, bright since I switched to the flourescent so that could be the trigger for the flowers.
The anacharis seems happy on top but the roots and parts I put in the gravel still rott in less than a week and I have to replant them all the time. I will be getting some type of fertilizer as the roots need something to help them get established.
I will do my best to get a picture of the flowers when, if they open.
One thing I forgot that might have made a difference. I took the lids to two peanut butter jars and drilled a hole in the middle and one side and put it over my stacks to my undergravel filter. This cut down drastically on the surface agitation in most of the tank so maybe the CO2
is higher and causing the blooms also.