All Seas MarineSLB Splmt Replenisher Kiloblk

Could not be easier..... Just add , once gone .. Add more. Takes care of all trace elements.

I have been using this product off and on over 15 years. It is nice to know you will not over dose your tank by mistake when you plop this in the sump. Simple and safe.

I was skeptical at first about putting this in my tank, heavily stocked 300 gallon display, 2 very large tangs (7" and 5"), 2 clowns, 2 Goby, blenny, Flame hark fish, file fish, 30+ hermits, 20+ Peppermint Shrimp, 2 emerald Crabs. So many coral and 4 giant Anemones that split from 1. System has been running 3 years but I've had issues with my ph and nitrates at times, and of course keeping nutrient levels where they need to be to support good growth. Literally the day after putting this in my return chamber opposite of the pump, all my Corals are HUGE, pulsing, thriving. My Anemones are so bright and my green acro that turned purple is turning green again! I can't believe how fast it made a difference. It's been over a week and everything continues to thrive. I have new formations on my zoas, my pulsing Xenia is insane, my fish look brighter. This stuff is awesome. Buy it. Don't mind my aiptasia issue. It was worse, but I'm finally winning.Edit - its doesn't stop releasing things like cal and mag into the tank like it claims. It should be 1500mag or 400 cal max.... I'm getting over 1800 mag and 700 cal. Only thing I changed was adding this. Removed it and a weet later my levels are back to where they were. So yes. It works by adding back in nutrients but it doesn't stop at a certain level. It just keeps adding it. Always test. Would be great for a very low nut system.

provides all the essential elements needed for your tank. You might supplement a ph buffer and more calcium if your running alot of corals.

Love this stuff. It keeps my saltwater tank happy and all my livestock healthy!

this block is HUGE, luckily I have a large sump the block fit into. It keeps my PH stable and coral and fish are still alive :)

Great product. I got 2 and they came in all in one piece.

Great product