for me it started 12 years ago when i got a 18x10x10 which i soon got bored with then got 2 tanks on a stand from my then father in law who had given up fish they were 30x12x12, then moved out from the ex and in with my now wife then went and bought a new 150L 4ft tank. then moved house with loads more room
then was a 3 foot tank in the paper cheap so got that when i got there he had 3 for sale the 3 foot a 4 foot and a 2ft 6 and got the lot for £100 so got all them set up and running with various species then see a 6 footer in the paper for £30
and couldnt resist (how i got that home in a metro i dont know) found an old sideboard at the tip that was 6x2 so got it did it up and took the legs off, so at this point i had
2 x 2ft6 tanks (2x71) 142L guppys mollys and platys
1 x 4ft 150L 2 x 6 inch cichlids, hornet ? cant remember the names but got them free from lfs
1 x 4ft 170L barb tank
1 x 2ft6 106L fry tank from the livebearer tanks
1 x 3ft 127L single oscar named phsyco got from a mate as no one would take it and he said he would flush it
1 x 6ft 680L coldwater tank with orandas, hillstream loaches, comets and a yellow ghost kio, and some normal ghost kio (used this tank as a grow on for my pond
so in total 1375L
and the water changes were horriffic i was doing them every night nearly in the end something had to give as id started up pigeon racing again so all stock was sold off and cut down to the 1 4ft tank which went through various stockings then couldnt resist and bought the duo 800, now come to my senses and got a roma 240 which has the stocking im happy with and will be for a log while and even the wife and mother in law says looks fantastic
just looking for 1 more tank now, a little one that will fit in the roma cabinet as a fry / hospital tank