Anyway I knew the tanks were pretty grubby but a good clean and they will be fine.
I have mixed a bucket of bleech, all purpose cleaner and vinager together and will clean the much off with that and then once done will pop a few baby seterlising tabs in and get rid of any addital muck and germs.
is this the best way top do it for the tanks I have or is there a better way?
here are pics of the tanks as shown on the ad, to be honest they were a bit dirtier when they arrived as they obviously been stored for a while

