i know i couldn't have one here,
posted enough time's about how bad a sleeper i am .. but hey ho can wish.
we did have a very active fish tank, i never wanted it, gave in and got into it .. decorated it, chose all the rocks, scenery, fish .. think we had near on 30 tropical fish, we are now down to one and he soldiers on. my Sister had to pop in to feed him when we go away, mind you she waters our garden for us too.
i hated coming down in the morning and seeing another one had popped his clogs

and hubby had to fish it out, so once this last one has gone that will be our fish tank days over with .. this one must be coming up about 10 now.
glad your Grandson is enjoying the tank though Paul
Suzanne