Keeping Aiptasia in Sub-Ideal Conditions?

TypicalNoah

New member
Arg!

So here's the straight skinny:

I've been assigned the task of Aiptasia (pest anemone) aquaculture in 2.5 gallon tanks. As it stands right now, each tank has a Marineland biowheel filter on it - the mini rated to 10 gallons - with the filter pad removed. There are 2-3 fingertip sized anemones in each tank right now, and they are "fed" a few mL of ZooPlex or frozen brine shrimp cube shavings about twice a week. All the parameters are where they need to be, pH 8.3, temp 24 to 27 deg. C, ammo, 'trites n' 'trates, and phosphates are not the issue. The seawater is mixed with Instant Oceans salt. The salinity is measured with a less-than-reliable Instant Oceans hydrometer, but careful measurements still show salinity is at 1.022, with a flux from 1.021-1.024 (evaporative). Lighting is 24 hrs, provided by fixtures of two standard length white fluorescent tubes, lain on their sides - one on EACH side of the two gallon tanks (two tanks between each set of lights).

And after all this, the Aiptasia seem happy - they are darkly colored and have extended tentacles - but they are not multiplying.

Can anyone point out what I'm doing wrong, or direct me in a better direction?

(Just FYI: The goal is just to establish a stable population so I can do research... and it's kind of embarrassing that I'm held back at step 1, especially as more of an aquaculturist than a researcher... gah.)
 
Feed them more ;) If your looking to get some serious reproduction out of them, I'd feed them daily or at least every other day. Also use of a razor blade will speed things along.
 
I tried to culture Aiptasias before and they are virtually indestructable water quality wise. In fact, it is usually the case that they spread faster in poor conditions (high nitrates). To get them to spread more quickly you could try taking a sharp object to one of them and shred the hell out of it. This will cause hundreds of little ones to pop up in no time. It also helps to have a number of good surfaces for them to grow (such as rocks).
 
They will not reproduce in a 24 hour photo-period. This method is used to discourage their reproduction in filtration systems. Give them a 6 hour dark period, and feed them several times a day, and you'll have more than you'll know what to do with.
 
An article that mentions Aiptasia culture for nudibranch propagation:

http://reefkeeping.com/issues/2004-01/ac/feature/index.php

There are also a few journal articles specifically on Aiptasia culture from the mid-1980's, I don't have the citations handy but if you're culturing for research I assume you have access to a university biology library. Me, I go hang out at Duke's bio library and spend hours reading the marine bio stuff, but I'm just geeky like that. :D

-Sonja
 
You want MORE aiptasia's? I'm sure if you ask people well send boxes of them to your door for free...some people are just that ****ED at them.
 
<a href=showthread.php?s=&postid=8717128#post8717128 target=_blank>Originally posted</a> by samc99us
You want MORE aiptasia's? I'm sure if you ask people well send boxes of them to your door for free...some people are just that ****ED at them.

Or, send 'em my way if the OP doesn't want 'em.

-Sonja
 
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