Caulerpa Display Tank Questions

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Greaps

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I'm exploring possibilities and wanted to share an idea for a fairly unique tank but maybe not if you have a refugium. I enjoy the fish primarily. But want more to look at than just rock and sand. I have always liked the freshwater planted tanks with open aquascapes and carpeting plants.

Knowing we don't have many plants but instead macro algae I think I have an idea of where to go with this. I just don't know how maintenance intensive a macro algae tank is and hope to gain some insight if anyone cares to share.

I want to put down a shallow sand bed, rubble, small rocks, and plant across the tank a species of Caulerpa. I have in mind is Caulerpa Mexicana as its described as deep green, and compact, keeping height under 6 inches with higher flow and light. I have three questions now.

1. Would it be difficulty to keep it down low and not become a tall mass of it? Can it be cut back aggressively? Can it just be cut down to height hitting stems and leafs alike similarly or does this kind of damage cause problems? Assuming im doing well, and keeping healthy plants, with rapid growth, is this a weekly job to cut it back or bi-weekly? Would it be a 10 minute job to clean up(trim down to 4-6 inch height) a 4ftX2ft area or much more involved?

2. What lighting? I think 10k color would be a good balance for viewing and growing spectrum. I am thinking 150w MH 10k and 2 bulb T5 for extended dawn and dusk viewing hours. (purple+ and Blue+) My other option is just a 6 bulb T5, running a bulb combo for 10k spectrums.

3. What filtration? I'm thinking a skimmer, and socks (possible roller mat) if new options come for sale. Possible some Carbon, but I'm thinking of doing that DIY marine snow instead.

Anyway thank you for anyone who cares to comment, my main concern is if it would be possible, manageable to maintain the caulerpa keeping it low and compact.
 
I'm exploring possibilities and wanted to share an idea for a fairly unique tank but maybe not if you have a refugium. I enjoy the fish primarily. But want more to look at than just rock and sand. I have always liked the freshwater planted tanks with open aquascapes and carpeting plants.

Knowing we don't have many plants but instead macro algae I think I have an idea of where to go with this. I just don't know how maintenance intensive a macro algae tank is and hope to gain some insight if anyone cares to share.

I want to put down a shallow sand bed, rubble, small rocks, and plant across the tank a species of Caulerpa. I have in mind is Caulerpa Mexicana as its described as deep green, and compact, keeping height under 6 inches with higher flow and light. I have three questions now.

1. Would it be difficulty to keep it down low and not become a tall mass of it? Can it be cut back aggressively? Can it just be cut down to height hitting stems and leafs alike similarly or does this kind of damage cause problems? Assuming im doing well, and keeping healthy plants, with rapid growth, is this a weekly job to cut it back or bi-weekly? Would it be a 10 minute job to clean up(trim down to 4-6 inch height) a 4ftX2ft area or much more involved?

2. What lighting? I think 10k color would be a good balance for viewing and growing spectrum. I am thinking 150w MH 10k and 2 bulb T5 for extended dawn and dusk viewing hours. (purple+ and Blue+) My other option is just a 6 bulb T5, running a bulb combo for 10k spectrums.

3. What filtration? I'm thinking a skimmer, and socks (possible roller mat) if new options come for sale. Possible some Carbon, but I'm thinking of doing that DIY marine snow instead.

Anyway thank you for anyone who cares to comment, my main concern is if it would be possible, manageable to maintain the caulerpa keeping it low and compact.

It will grow quickly, but bi-monthly trimming should keep things in order. I wouldn't worry about filtration much, definitely a filter sock to keep detritus out of the sump. Also, some carbon to keep the water nice and clear. I've kept freshwater planted tanks for years and cleaning up after trimming is definitely important to water quality. Maybe do a small water change at the same time as you trim the algae. Good light coverage will certainly help growth, the more juice you give it the faster it will photosynthesize but it sounds like either of your lighting options will handle the job. Plants and algae love red spectrum light.

Sounds like a fun project. What animals are you planning to keep in the tank? It could be a cool system to keep sea hares or other unusual invertebrates!
 
Thanks for the reply and tips not sure yet on stocking, but with so much cover I'd definitely want to include numerous open water swimmers. As for inverts, a sea star or two would be great. I think Id have to be careful a lot of inverts like macro to eat.
 
John Tullock's book natural reef aquarium is has several ideas and such thanks, and the role of nature.

Bottom line is that there are plenty of places in the ocean they're basically loaded with macro algae and sea grass . It's completely viable. You could also even add some live rock or even some very hardy corals (Siderastrea, Porites Lobata) if you want
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

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  • Not yet, but I have one that I want to buy in mind!

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  • Other (please explain).

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