My seagrass tank

[kfisc]

This is one of the most impressive displays I've seen. I've never personally seen a split-level tank in a home aquarium, just amazing work.

 

[willychen]

Hi I am just planning out a similar set-up. May I ask what kind of substrate and how deep you are making it for the seagrass? Do you have any sub-gravel filtration(!) or any miracle mud? This is such a nice tank.

The substrate for my seagrasses is just regular Philippine sea sand at a depth of 4-5cm, and I use a gardening granular slow-release fertilizer in the bottom sand

 

[Retiredw/Reef]

How Deep is your sandbed on your Seagrass Aquarium, what is it composition “grades,” of sand. I grow Macro Algae with a Deep Multi-grade sand bed, from Sugar Sand to Reef Rubble. I’ve had no luck with Different Sea Grasses from Florida.

 

[willychen]

How Deep is your sandbed on your Seagrass Aquarium, what is it composition “grades,” of sand. I grow Macro Algae with a Deep Multi-grade sand bed, from Sugar Sand to Reef Rubble. I’ve had no luck with Different Sea Grasses from Florida.

I don't understand the name of my sand, we usually call it Philippine sand, it should be mainly shells with coral detritus, and the depth of the sand is about 4-5cm. i have also tried different sizes of sand, and seagrasses can grow in all of them. I think it's possible that your cause is not enough nutrients, macroalgae can absorb nutrients from the water, while seagrasses may absorb more through their root system