Having now got my fish I realise that my prefilter sponge is too deep for me to service easily. I do like easy, it means I'll actually do it....so I've come up with two designs:
pre-filter1.jpgpre-filter2.jpg
See I want to be able to just pull the sponge from the surface when I open to feed or vacuum. First I thought I'd make it a rudimentary surface skimmer aswell but then a quandry...I want to pull water from the floor of the tank. Now my head hurts...any thoughts?