I printed it out and read the first half one day and the second half the next day, still to this day I only heat my marines with thermostatically controlled electrical thermostat, my to African tanks are heated still to this day by external heat by way of air con (hot mod)pointed at the tank (water temp 20-23C)on during the winter and off spring and autumn and again on cold mod in the summer(water temp 27-28C). Not quite gas heating under the tank
The Daphna bloom the sudden wipe out can be controlled, by adding lime and cow dry done to park pond when know one is looking the hit it with a smaller amount monthly to keep "stability" the just net daphnia out for a long season period, for some reason the invertebrate need the lime to build their exoskeleton and when not present "crash" suddelly.
Well done for winning the article, if you were trying to pull any of the fair sex the article may of dated you a little

as I only started to hobby when the oiled air pumps where going out which makes you much much more senior than me

, having said that there may be some female reeders such as Mary Bailey that still can eaisly be pulled on a fish forum, best of luck and keep up the good writing.
Sean
www.aquaworld.netfirms.com/Food/daphnia2.htm