[fishguy23]

I recently moved and unfortunately lost some livestock but everything else seemed ok, after a week of being settled I find that my LS is not really thriving, actually appear to be dying, they consist of mostly softies & LPS. I do not have any testing kits beacause I have relied on my water changes and appearance of corals to determine health. The coraline algae that has grown has somewhat diminished. When I moved I took buckets of water from existing and added about 15-20% of new rodi water. Not sure what I did wrong.......?

Im planning to get a sample of water taken to a LFS tonight, but what could have gone wrong???

	RODI High quality filtration systems used to purify tap water before it is mixed with salt or added to the aquarium for evaporative top off. Most municipal water supplies contain unacceptable levels of Nitrate, Phosphate, Lead, Chlorine, Copper etc. It is critical that these impurities are removed as some are toxic to reef organisms and others fuel algal blooms that can quickly overtake a reef display. Again, there are many brands and many configurations to fit most applications.

	LPS Large Polyped Stony corals – In the aquarium hobby this is a common division of the species of stony corals based upon the visual assessment of the size of the polyps. Corals in this category were among the first stony corals to be kept successfully in captivity and include many very beautiful species. Commonly kept Genera include Euphyllia (hammer/frogspawn coral), Favia (brain coral), Plerogyra (bubble coral), Lobophyllia (meat/tooth coral), and Caulastrea (candycane coral). LPS corals also include the popular solitary non-colonial stony corals such as Fungia (plate coral), Cynarina (button coral), Trachyphyllia (open brain coral), and Herpolitha (tongue coral). Like their SPS counterparts, LPS corals require good water quality, intense lighting of the appropriate spectrum, adequate water movement and regular supplementation of calcium.

[marki24]

what sand did you use?

[Deanos]

From your description, it seems your lowered your salinity. You sure you added ro/di water and not saltwater?

[fishguy23]

I used the existing sand bed & salinity was slightly lower but adjusted

[fishguy23]

oh yeah I did use ro/di water to top off, I thought maybe it would be the equivalent of doing a 15-20% water change

["DevIouS"]

[Domboski]

What is your salinity now? If the tank was missing 15-20% of water and you filled it up with straight RO/DI water, you probably lowered the salinity drastically and quickly.

Did you mean you added freshly mixed saltwater using RO/DI?

[fishguy23]

1.023 this am....but assuming I did a 15-20% water change, would it be any different? I brought enough existing water to fill the tank and all I did was add the ro/di water to my sump which I am estimating to be about 15-20%

[Domboski]

What size tank do you have (gallons)? What size sump (gallons)?

[daaznmofo]

if you added only ro to do the 15-20%, your salinity would drop