Pukani rocks
- Thread starter hyla84
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With regards to Pukani rock it all comes down to age and how the rock and/or aquarium was cycled. While a good solid dry rock foundation at a great price point it has a history of leaching phosphate for a while unless you cycle the rock standalone before introducing it to your tank.
Rather than chase a number and react to it what does your tank say when you look at it. Is there a problem with algae? Are corals thriving? Is it difficult to keep corals alive? If so which do well, which do not? Try and narrow it down.
My tank has about 150 lbs of Pukani that started dry. Even after pressure washing, 48 hours in bleach baths, followed up by 2 x 24 baths in Lanthanum Chloride, and again pressure washing and cycling the tank using a fishless cycle I still had similar issues as you report. Some algae is a part of the cycle. Some of it is due to excessive nutrients. Some due to not setting up a properly sized crew to manage algae. List goes on.
Today my upgrade tank is about 1 and 1 / 2 years old. Phosphate will be as low as .3 and over the course of a month end up at .18. This is more than likely the rock leaching it out. Test corals are growing and algae is finally staying banished or under control via the crew introduced to munch on it. If or when I see an issue I will fall back to 30 drops or so of phosphate rx in a filter sock and that brings it back down.
Rather than chase a number and react to it what does your tank say when you look at it. Is there a problem with algae? Are corals thriving? Is it difficult to keep corals alive? If so which do well, which do not? Try and narrow it down.
My tank has about 150 lbs of Pukani that started dry. Even after pressure washing, 48 hours in bleach baths, followed up by 2 x 24 baths in Lanthanum Chloride, and again pressure washing and cycling the tank using a fishless cycle I still had similar issues as you report. Some algae is a part of the cycle. Some of it is due to excessive nutrients. Some due to not setting up a properly sized crew to manage algae. List goes on.
Today my upgrade tank is about 1 and 1 / 2 years old. Phosphate will be as low as .3 and over the course of a month end up at .18. This is more than likely the rock leaching it out. Test corals are growing and algae is finally staying banished or under control via the crew introduced to munch on it. If or when I see an issue I will fall back to 30 drops or so of phosphate rx in a filter sock and that brings it back down.
So, tank has been setup in August 2018. I guess they where dry, all white, I didn't know anything about marine aquariums and I trusted my vendor who sold them for 25 euro per kg... He gave me some alive marine rocks as well, now I understand why.... I lost corals and whenever I stop using rowaphos after a couple of days the hanna phosphorus checker says phosphorus 100 which means phosphate at 0.30...
Don't have any friend who can keep my corals and I don't trust my lfs here in Italy.
So if I can solve the problem without dismissing the tank would be amazing... Thanks!
