wasn't going to post this but meh.. had a very very close call with the tank early this morning. what a night!
I stayed up to wish a friend happy birthday. Then fell asleep at about 1am or so. Few hours later I hear splashing sounds like fish jumping so (and this is 4am) i wake up and put a small light on and all my fish are at the top of the tank gasping for air!
I jump out of bed, evict the apple snails from their tank. discus are literally and i mean really popping out of the water head first. put my hand in the tank, pick out the discus one by one as they just sat there, and put them in the snail tank. same with my L168.
Then i noticed that i had over filled my tank when i did the wc as there was no movement on the RHS of the tank at the top - its how i aerate the tank. i quickly lower the water a bit and go to put the air pump on. - its a brand new eheim 400LPH pump that i really like.
and! it does not work. so i take out the pipe from the nozzle out let and it spits out water! lots and lots of water..
so i disconnect it, and keep it aside, and just remove and put 30L of new water into the tank. All this at 4am! Gah..
cardinals and the other fish picked up immediately and stopped gasping for air. I removed one of the CO2 diffusers from the tank as well. Discus looked happy in the apple snail tank, and thankfully the L168 did too. I didn't need nets to catch any of them.
All transferred to the main tank now, and are happy. The air pump still works! and is in front of the dehumidifier as we speak. it will stay there for the next few days.
All in all I think ive lost 1 cardinal and nothing else.
phew.
Then i woke up again at 5 am cause i dreamed that the carpet flooded. so i got out of bed again and took out all the potential shyponable air tubes out the tank.
also woke up at 6am to make sure everything was ok.
Then woke up at 10 am.
what a night.
next time i do a water change ill make sure i leave the aeration space I have created.