Hi looking good mungo
I would do as lilac_froggy has said and seperate the vallis,also add alot more plants,{as many as you wish}
Some plants will grow ok,other's will die for know appareant reason{it happens in almost every tank,new - or old}
You can buy plant food to add to the tank,but not used it myself so cannot comment i'm afraid
I do not know if pets at home will test water for you? maybe ask and see what they say? If not get the test kit recomended by Nicola
ps is this your first ever tank?
Hi thought about time i updated this!
Tank no 1 = 3 retic rays,1aro,2 ompuk cats,8 angels,1 syd greshoffi{19 years old},1 syd unkown,1 stripped dora,1 plec,1 silver dat,1 pim and a soribum lima!
Tank no2 = 6 auralis barbs,2 needle gars,1 molly,1 dat microlepis,1 trye track eel and 8 bristlenoses!
Tank no 3 = 2 goldfish{on holiday}1 flag tail thingy{over twenty years old},4 silver dats,1 pim and a plec!