Berried females seem to have settled on opposite ends of the Bookshelf. Both still looking very berried.
Have noticed that, when looking at the undersides of the shrimp as they crawl up the tank walls that some have slightly wider undercarriages, (meaning the part that carries eggs). Curious if those are unberried females.
As I've posted elsewhere in our forum, my 10 gallon opae tank is currently experiencing an outbreak of cyanobacteria, "bluegreen algae". (In my case it's more green/brown.)
It's making an effort to cover the sand, some of the rubble and bits of the macro algae.
I haven't had this problem in the Bookshelf tank (yet) and can only think of a couple things that I've done different in these tanks, so thinking (probably incorrectly ;-) ) that the cause may be one of these.
In the Bookshelf tank (the 'real' topic of this thread lol!) At initial setup I used "live seawater", in the 10 gallon tank I used mostly Instant Ocean.
The second (and to me the real probable cause):
The Bookshelf tank has a single 50 /50 fluorescent over it. The tank is much shallower than the 10 gallon so it performs perfectly!
I felt inclined to increase the lighting, quite dramatically, (and very impressively, I've got to say!) over the 10 gallon tank, (being quite a bit deeper), using not only the same tube as that over the Bookshelf tank, but with two intensively bright LED units. Makes for an awesome display, the light intense and white!
Well... Last night I removed the LEDs.
Today I tested the parameters of the 10 gallon tank and they are:
Seems perfect growing grounds for cyanobacteria, from what I've read.
There are several "cures" out there. From darkening the tank for several days to antibiotics. Adding a filter with phosphate removing media should help as well, but I don't know if that's the problem. I don't have a test kit for that. I'm not sure antibiotics are safe for the shrimp, the bio filter or the live rock, so I'm hesitant to use those.
Anyone out there with suggestions? Something you used with success?
Will remove as much as I can by hand tonight, can't syphon, there are tiny babies in there...
Great news on your berried shrimp. On the blue green algae I do not like using antibiotics. Try cutting down on the feeding. How is the macro algae doing? Less food and healthy and growing macro algae might starve it out.
Rob I have 15 juvenile Opae in my cylinder tank. They have not colored up but they weren't very red in the first place. Will add another 10. Your ten gallon looks great. Maybe you could reduce feeding to once a week at least until the BGA is gone. What do you mean by 'real' food?
Last edited by KenP; 01-18-2013 at 10:35 PM.
Reason: Add picture, oops sideways.
I have some white to pale pink opae amongst the brilliant red ones.
I got a phosphate test kit, so will check the 10 gallon tank later to see if that may be part of the blue green algae issue.
By "real" food I mean the artificial man made stuff, lol! A bit more nutritious than slime, I'm thinking. The Opae in the bookshelf tank go nuts over anything I drop in. Including, btw, this powdered red stuff that Jake makes and sells. Thinking it has contributed to the glowing reds many of these guys have taken on...
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