buffinoz

my levels are good all outher fish fine
just 1 of my 2 bn ( 2 inch long) sticks to the glass for 10mins then does a mad dash to top of tank ( grabs an air bubble) and then goes back to where it was and carries on as normal for ten mins, but only in the evening

my fish is odd

Shawnie

Do you have any kid of bubble wand or other air circulation devices in the tank? sometimes that helps put more oxygen in the water...when you say water is fine, what were the test results?

COBettaCouple

I have heard of Plecos doing that sometimes, Corys like to do that too. It usually indicates a need for more oxygen in the water so I'd agree on increasing aeration in the tank.

buffinoz

there is a wand 2ft long with fine bubbles, a 2 inch stone big bubbles, each comming off a different supply from my aerator, and the filter return falls into tank causing fine bubbles , it looks almost cloudy , till you stop one of the items
its only time to time he/she does it
ph 7.4
ammonia 0
nitrite 0
nitrate 5
temp 27

COBettaCouple

Your pleco only does that when 1 or both air devices are off.

buffinoz

air is on all time,maybe off for 4 hours when im home and looking around the tank, the air is on now and still doing it, i notice an airbubble escape from its mouth and then it goes and gets a bubble g is it just odd?

COBettaCouple

Interesting. I'm not sure what he's up to, then.

buffinoz

well i dropped the temp now down to 23, from 25 and it has stopped being odd