Carpet anemone too for tank

[dieselkeeper]

I have a mertens carpet anemone in a 90 gallon. I've had it since April 2019. If I had to guess it has to 24 to 30 inches across. It lays flat most of the time. It rarely has that anemone fold around the edge. He is under T5's now. I've been thinking about putting him in a 100 gallon rubbermaid vat under metal halides. He takes up less space if has the folds. I'm thinking the folds require more light, he is laying flat do to not enough light??? Or should I just get a bigger tank?

 

[Anemone_Fanatic]

Looks very happy to me. Nice anemone! Merten's carpets are known for laying flat and sort of "hugging the rock". Sounds like it's doing fine and behaving as it normally would. Here's a picture of one in the wild, laying flat with a family of clownfish.

 

[argiBK]

This reminds me of that one lady who had mertens in 4’x4‘ tank, and fully spread out the anemone still covered just about the entire tank.

Mertensii’s by diameter are the largest anemone species. If you want to accommodate a fully grown one, you’re going to need quite a large footprint.

They’re quite hardy as a species and not incredibly demanding as say giganteas, or even haddonis, so as long you’re comfortable with how much space it’s taking up, it should be fine, maybe spotlight it with an AI Prime or similar?

 

[Gumbies R Us]

I have a mertens carpet anemone in a 90 gallon. I've had it since April 2019. If I had to guess it has to 24 to 30 inches across. It lays flat most of the time. It rarely has that anemone fold around the edge. He is under T5's now. I've been thinking about putting him in a 100 gallon rubbermaid vat under metal halides. He takes up less space if has the folds. I'm thinking the folds require more light, he is laying flat do to not enough light??? Or should I just get a bigger tank?

That thing is massive

 

[Crustaceon]

My haddoni is about a foot across now. I've had it for about a year and it doubled in size. This is in a 50g. I can't image how big it'll get a few years from now, but I'll probably need a bigger tank for it by then. I also have a LTA in the tank that absolutely dwarfs the haddoni, so.... yeah.

 

[dieselkeeper]

This reminds me of that one lady who had mertens in 4’x4‘ tank, and fully spread out the anemone still covered just about the entire tank.

Mertensii’s by diameter are the largest anemone species. If you want to accommodate a fully grown one, you’re going to need quite a large footprint.

They’re quite hardy as a species and not incredibly demanding as say giganteas, or even haddonis, so as long you’re comfortable with how much space it’s taking up, it should be fine, maybe spotlight it with an AI Prime or similar?

I just don't like the way it looks right now. Looks deformed. It is all the way on that side. The light fixture is 3 foot on a 4 foot tank. Its not getting full par. I have a metal halide fixture laying around. I'm gonna mount it directly over it to see if it may get some folds like in my first picture.