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Ok good info guys, thanks a lot. Now at this point I'm not totally sure which I will go with. If I do decide to go LED, how many lumens do you need to keep at least LPS and softies?

Hello everyone!! I got out of reef keeping a couple years ago and I wanna set up a new tank sometime within the next couple months but I'm relearning first before I jump back into it. When I took down my tank, Metal Halide lights were the best reef lights on the market but now I see alot about...

never used ati bulbs before. based on what I'm seeing online, they look like good bulbs

last summer I purchased a t5 ho 4 bulb fixture. It came with 2 460 nm actinic bulbs and 2 10000 k daylight bulbs. It's about time to replace the bulbs and I was looking to get some advice from some other experianced reef keepers about what kinda bulbs to get. I want bulbs that will bring out...

Its hard to tell without a better pic, something for scale, and some kinda description but it looks like maybe a carpet anemone

ok, sounds good

Originally Posted by Bang Guy I can probably help if you provide all of the details. You have a good coral load so can you list how much of each and how often you are dosing? Please do not add Mg before you test for it. Well I use the DKH booster every day as directed (5ml per 20 gal) and I...

Originally Posted by Stanlalee I wouldn't add any before getting that test kit. Problem with mg is you need to add a TON to raise it significantly so adding by guestimation (or even known dosage ratio) wont cut it. following most product directions wont put a dent in the mg level. if you have...

I looked into it a little more. I found that maintaining good levels of magnesium will "allow easier maintenance of alkilinity and calcium levels". I feel that I may have a shortage of magnesium which may be causing my problem. I don't know of anywhere that sells a magnesium test kit. I...

I've heard that some people use epson salt to raise magnesium levels in their tanks. Is this a good idea and if so how much should I use for a 20 gal tank?

oh, yeah I did that. it's at about 400 ppm and the ph is about 8.2ish. I haven't checked the KH of the salt mix yet.

I don't have anything to test magnesium levels so I haven't tested the salt mix and my pH is usually between 8.0-8.2 but that's only because I buffer daily. If I don't buffer it goes bown to 7.8 or lower

I have posted before about this and can't seem to solve my problem. No matter how many times I dose with buffers and additives I can't seem to get my KH to stay above 8 DKH and I can't get my calcium to stay above about 340 ppm. I recently switched from a pH buffer to a KH booster hoping that...

sorry, it's kent DKH. Both of those products are avalable on this site of at your lfs

Originally Posted by Keith Gray thanks- what do you do for low alkalinity and does it ususally coincide with ph readings ? Low KH will cause shifts in pH. You can use Kent DHK or Seachem reef builder to raise KH. Reef buffers will raise KH but I found not as much as one of those products...

cool, I was actually looking at that product just earlier today. I'll have to give it a try. Thanks for the advise

Originally Posted by GeoJ If we have new tanks then we should start with the acid CO2 from algae respiration. CO2 neutralizes some alkaline minerals we can’t stop this from happening but if we take the Glass tops off and have good circulation then the CO2 will escape the water faster and affect...

For some reason since I moved, my pH usually stays around 7.8 and my KH is about 6 DKH. I use buffers but usually within the next couple days it's low again and I can't figure out why it keeps dropping. I'm usuing seachem reef buffer. I add it every couple days as needed but because I use so...

What happens when your KH is a little low? I know that it may make the pH fluctuate but will it harm my corals or keep them from growing?

Wow! That's an amazing tank!!