The trouble with Bubble

[Tanked]

Hi all,

I noticed recently (since I changed my MH bulb I think but I doubt it's related) that I have fairly large air bubbles (the size of a fish eye) stuck on most of my rocks throughout my tank.

I chase them away with a turkey baster but they return within a day.

Any ideas ? It is most displeasing aesthetically.

Erik

 

[marco67]

I think it is very likely related.
You new bulb is probably pleasing some type of algae, which in turn releases gasses that in turn build up on your rocks.

 

[clamm]

try using the same bulb but a shorter duration to determine if its light related, i agree with the above post.

 

[JustDavidP]

Blowing away the bubbles with a baster is probably not a good idea. I'd siphon the area. Many nuisance algae will emit gasses and create those bubbles. often, the bubbles will rise, taking a new colony of the algae with it to settle elsewhere. By siphoning, you can get a small water change done while actually taking some of the algae out.

Anyways...reducing the photoperiod (or using screen to diffuse some of the light while the new bulbs burn in/tank adjustst to new light), watching the introduction of excess nutrients, and siphoning off algae while water swapping should help out.

< D >