Marine Betta

[rhdoug]

Mine likes to stay close to the rockwork, or back in the "caves" about half of the time. The rest of the time he is either patrolling the tank or hovering just at the opening to a cave.

 

[Moort82]

Mine is fairly similar but due to the shading from the sps above its fairly active all day. A bright busy tank isn't going to make them bold.

 

[OrionN]

With clownfish you don't need rotifers. I raised thousands just with brine shrimp and frozen Cyclops. The trick is to keep the broodstock in lower salinity (1.018). That way the larva get large enough to eat brine shrimp from day one.

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Why are larva larger with low salinity? Is this really true?

 

[ThRoewer]

Why are larva larger with low salinity? Is this really true?

It's what I experienced when breeding clownfish. I think with lower salinity the developing larva has less energy to invest into maintaining its internal salinity and therefore more of the eggs reserves​ to invest into growth.

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[ponokareefer]

Are these fish able to be kept with smaller fish or will they eat them?

 

[Moort82]

Are these fish able to be kept with smaller fish or will they eat them?

How small are we talking? I have a betta that's 6-7" in with a mandarin that's 1.5" or so (a female who hasn't grown in the 7 years I've had her since rescuing her from a friends overflow). The mandarin was in first and the betta generally ignores her.
Fish unless things like trimma, cleaner gobies or similar sized thin profile fish, should be relatively safe ime.

 

[rhdoug]

Agree with the above, my betta has is around 4.5" and is with a cleaner goby and several other small fish (chalk bass, assessors, small clown male). He ignores all the small fish so far.