Algae wipeout
So this turned into a full on disaster.
The blackout didn't really work that well. Didn't make much difference to the algae - got rid of the diatoms but that was never really the issue.
And it basically killed all the HC, most of the myriophyllum, and all the stauro.
Then I think I may have overfed puff, and skipped a water change or two. Utter disaster.
Have never had it that bad. So yesterday bit the bullet, did a big cleanup (hoiking out disgusting algae, two 80% water changes, planting in some new stems from the big tank, and removing some hardscape).
So here it is after all that:
Overall, think had too much hardscape in here too, so have removed two stones and will probably make the long flat piece smaller, going for an overall more planted look. Have learned a lot from my big tank.
Am not really here for the next month, so plan is to leave this under minimal attention, then when I've got some more time, plant it up really thickly from the big tank, with just limnophila near the intakes, rotala through the central section and then stauro towards the other end, and sculpt it with pruning.
Lesson 1: keep things stable if you possibly can
Lesson 2: plant heavily from the outset
Lesson 3: if you blackout, be very cautious about turning the lights back on and feeding
Lesson 4: less hardscape (for me) is more, particularly in such a thin, long tank
Funny how much easier the big tank is than this one. But feel I'm ready now to sort this one out with the wisdom of my failure.
Hope that's useful for people! Yuk.