cementing gluing rocks together

[3littlebear]

Order them from reefsupplies.

[WarDog]

I'm sad to report that after 2 years, the Fijicrete is starting to crumble in my tank.

[gmann]

e-marco kit

[chwkreefer]

I drill holes and use acrylic rod which can be purchased/ordered from most local plexiglass suppliers (last year I paid $5 for 6 ft length of 3/8 dia) and I also use cable ties and then use Quickcrete Hydraulic Cement.

The hydraulic cement cures extremely fast (about 5 minutes) so you don't have much time to work with it, so use small amounts. It can be purchased at Home Depot. Sometimes the Hydraulic cement really is enough by itself as it bonds very well. Here's the link to the Hydraulic Cement at Home Depot.

https://www.homedepot.ca/en/home/p.h...000149564.html

[smokinreefer]

Great info!

Does the cement need to be cured afterwards? Or is it safe to go into the tank after setting?

[Mata]

I am looking for some bonding cement too, i can share the cost if someone order in bulk.

[Reefadiction]

If you can't find acrylic rods....plastic chopsticks work well also. I pegged my rocks together using plastic chopsticks and they hold up well still after 3 years

[spit.fire]

Alberts special sauce works best imo
All my rock work is made with it and I've dropped my rocks while pulling them out of the tank and the concrete joints held up (rock broke tho)


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