CaribSea Coraline Aquarium Gravel

[joeyvu]

Hello reefers.
I have been researching large size substrate for my SPS tank with heavy flow. Right now I have SS sand there (Tropic Eden reef grade). However, with the tunze and ecotech, there are some spots with no sand. I am thinking of adding more coarse sand to prevent these bald spot and found this Caribsea coralline gravel.
Has any body used this sand without any phosphate problem since I don't want this to browning my SPS?

Thanks in advance...

joey

 

[herring_fish]

I don' t quite understand your question. I have used Caribsea products for years (like 20) and a lot of different ones. They all seem to be great.

 

[joeyvu]

My concern is if this large size grain substrate is going to release bound phosphate into the aquarium once there.

thanks

 

[herring_fish]

I am sorry. I have never heard of this before so I can't comment on it. I have never seen a spike after putting sand in my tank.

 

[madadi]

I don't think it should cause a problem. Rinse it well and fill a ziplock back with it. put the back in the tank at the bottom where you want to have the new sand and release it out of the bag. I find using it this way minimizes how much dust rises in the tank. Turn off your flow also while doing it and give it some time to settle first.