thanks everyone,
to answer a few questions Rowaphos is phosphate remover (granules you pour into a filter "sock" thingy and chuck it on top of your existing filter) it absorbes huge quantities of phosphate hence, no algae.. it's not cheap but well worth it.
as to the plant in the front it's Riccia, a japanese floating plant. you have to weave it through a mesh and weigh it down to make a lawn. really nice stuff but needs loads of light and CO2.
close up
as to care about 2 hours on each tank at the weekend (shouldn't take that long but i dont exactly rush) and end up with an arm in the tank fiddling with something or other every night.