Tank

Quickly drawn plan

I've got some bolbitis heudelotii on the way and was wondering how best to place it the tank. I know it needs to go on a stone or wood (I presume I just tie it on with cotton as with most things?) so I was thinking of putting it fairly central back or perhaps one on the left near the trunk/stump and one towards the right on some new wood/rock. I don't know if I'd then need something else in the middle, although bolbitis is meant to grow fairly big. I have some vallisneria americana var asiatica on the way too which I was thinking would be good in the back right. I've got some alternanthera reineckii mini which I plan to put mid left. The wood currently has three mosses on it which are looking a bit pathetic at the moment but I hope will grow in. I just saw this post which has flame moss on top of the wood which looked good so I might try that that and anubias or something on/near the top of the stump.

Any suggestions/feedback would be welcome - normally I just stick them wherever and hope it looks good!

It's an either 60 or 75l tank (can't remember and haven't worked it out yet. Its about 60cm length, 30cm width 30cm height minus the substrate)