Herein lies my attempt to create a self-sustaining, ultra-low maintenance, sort of riparium tank which I can leave for 6 weeks at a time every few months while I'm on fieldwork without worrying about getting people to do anything other than chuck some more water in occaisionally.
Tank:
90x30x90 (240ish litres) shallow, square, lidless tank with terrible siliconing.
Stand is a pile of old wooden pallets with a blanket thrown over.
Equipment:
70W MH security light about 2' over the tank, 10-14 hours a day.
300W heater
Low turnover koralia powerhead wrapped in filter foam
Substrate:
John Innes compost capped with play sand
Hardscape:
Some rocks
Fired heather collected from the pentlands
Flora (emergent, mainly from homebase!):
Parlour Palm
Prayer Plant
Peace lillies
Other unknown lilly species
Echinodorus cordifolius
Flora (submerged):
E. vesuvious
H. verticillata
Glosso
Bolbitis
M. pteropus 'trident'
M. pteropus 'needle leave'
Juncus repens
Cyperus alternifolius
Micranthemum micranthemoides
Staurogyne sp.
Fauna:
Currently - cherry shrimp, various daphnia and related arthropods and any number of weird slimy things
Planned - more slimey things, and a group of licorice gouramis (Parosphromenus sp.). Possibly Hara jerdoni and some sort of micro rasbora, depending on how the food chain holds up.
Dosing regime: Nothing
Feeding regime: Occaisional handful of beech leaves
Setting up:
So I basically chucked the substrate in, plus some bewildered houseplants from homebase and some very sad looking aquatic plants that had got lost for a week in the snow, filled with water and went away for 3 weeks. Came back expecting some sort of horror show but was rewarded with a mere smattering of green and brown algae on the glass and some hydrocotyle that had actually managed to grow a bit. Hydrocotyle is now automatically my favourite aquarium plant!
Have now replaced frost-bitten plants with an assortment of others, just to see what will do well. Lots of mulm collecting in the middle of the tank, which is looking a bit bare now. Need to give some thought to how to scape that bit. As you can see, the echinodorus is taller than anything else now and is only inches off the light. Might have to start trimming it, which would be a shame. I've straightened it up now, but it was casting a lot of shadow, mainly over the glosso, which is frankly a dead loss. Need to think of something to replace it with, I think.
Added 50ish cherry shrimp and assorted daphnia, both of which are now happily breeding away. The rest of the microfauna arrived on its own in soil/plants etc.