I have Amano's in a 18 gallon 90% planted tank. The CO2 shuts off when the aquarium lights go off. I used air stone when I had CO2 DIY. My external filter Tetra EX 700 has spray bar that helps with water circulation and O2 at night so I do not use the air stone anymore.
The amano's are well know escape artists. I keep them in a covered tank or else they go out for a walk.
I avoid keeping tall driftwood which can protrude above the water level thus helping the amano's get out of a tank.
My bamboo shrimp escaped from my open shrimp tank a month ago.
He was out for 3-4 hours turned totally green.
Luckily I came home in time to save him. He's fine turned brown and living happily in the shrimp tank.
May be the shrimps come to the tank top near the rim to eat something (eg.driftwood,plant) get blown over the tank rim by fans, strong breeze from outside or strong currents from internal filter or air stone. Sometimes due excess CO2 or unsuitable water condition the shrimp swim towards the top and try to gasp air or escape.
The amano's are well know escape artists. I keep them in a covered tank or else they go out for a walk.
I avoid keeping tall driftwood which can protrude above the water level thus helping the amano's get out of a tank.
My bamboo shrimp escaped from my open shrimp tank a month ago.
He was out for 3-4 hours turned totally green.
Luckily I came home in time to save him. He's fine turned brown and living happily in the shrimp tank.
May be the shrimps come to the tank top near the rim to eat something (eg.driftwood,plant) get blown over the tank rim by fans, strong breeze from outside or strong currents from internal filter or air stone. Sometimes due excess CO2 or unsuitable water condition the shrimp swim towards the top and try to gasp air or escape.
