Well the substrate refresh is under way. Definitely no in progress pics as the tank looks awful
![Stick Out Tongue :p :p](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Going fairly slowly cos the new job has me splitting my time between Farnborough, London and Brussels. Also got some final exams later this week (no I have no idea what possessed me to take on another degree at this stage of my life).
Moved out around 20 litres of sand so far. The dust only takes 10-15 minutes to settle after each round, but I definitely will be going shallower next time as there is still a lot more to go. Oh well less sand -> more water -> more fish
![whistle :whistle: :whistle:](/images/smilies/ipb/whistling.gif)
. I have a sponge pre-filter so no need to turn the filter off. I thinned the frogbit a lot before I started. It has now been joined at the surface by the vals. Assume they will be ok floating for a while. The swords are in a plastic tub on the bottom. The anubias just get moved to wherever I am not working at the time.
I was pleasantly surprised not to encounter any smelly bits along the way. The sand has been in there about 5 years and I am one of those who does not vacuum or stir the sand. The biggest challenge has been to avoid fishing out a handful of corys with every jug of sand I scoop out. Hopefully I can get most of the rest of the sand out by the end of the weekend.
In other news I have got rid of loads of MTS. Someone suggested recently that those guys could survive being boiled. I suspect this was tongue in cheek but it turns out they were not far from the truth. I do usually boil them when I thin them out to avoid them ending up in local water courses or my pond. The first bucket I removed I ran water from the hot tap into it for around 10 minutes. The water was way too hot to put my hand in. I left the bucket over night and the next morning there were snail tracks all over the sand. So I emptied the water and re-filled the bucket, this time using a newly boiled kettle. Gave everything a good stir and waited an hour. More snail tracks
![dunno :dunno: :dunno:](/images/smilies/ipb/Dunno.gif)
I never found any live snails but to be on the safe side I am bagging up the sand and throwing it into the bin.