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Anyone ever use CaribSea's Instant Aquarium sand for a reef tank? I had ordered Arag Alive but received this which while for fresh water systems claims to be safe for marine systems. Will I have any issues using this instead of the Arag alive? Any one previously use this? Thanks

How many damsels can go in a 90 gallon tank?

Since going from my 90 to a 120 around year end I seem to be fighting an algae issue with hair algae growing out of control but only in certain places. The algae only grows in the top slots in my overflows, in the top of my overflows and on my powerheads. There is no algae growing on my...

I am running a Koralling 1502 Calc Reactor on my 120 reef but for some reason it keeps becoming airbound with too much CO2 in the canister so water is not being recirculated properly. I trid to fix this by adding a feed pump to the set up and it sems to have helped but still become airbound...

Once you receive the corals you have ordered how do you acclimate them? Temperature only by floating? drip? other? I have never ordered corals online before only gotten them from the LFS. Please advise. Thanks

Came down this morning to my tank making that awful sound of a tank whose sump has run dry. Thought to myself this is strange I know that I topped up the water last night adding about 3 gallons of freshwater to my sump. Initially didn't notice anything strange so immediately add 5 gallons of...

Currently working on designing a sump which will run two tanks and am looking for opinions on the best design for such a system. The sump is goign to measure 42"*18"*18" and have an estimated capacity of 60 gallons. Tank1 is a 120 gallon SPS tank on the first floor of the house with the sump...

If I combine the two 1" drains from my 120 what smallest size PVC which will not slow down my flow?

Have ordered a 120 gallon reef ready tank to replace my 90 gallon. How many powerheads should I be running and what type? Currently in my 90 I am running 3 aquaclears which seems to provide decent flow. Thanks.

Anyone know what size the drains and returns are on an Oceanic Reef Ready 178 gallon tank?

Currently it will be running on a 90 gallon acro tank which will be becoming a 215 gallon acro tank in the next few months. I am currently between either the Korallin C1502 or knop SIV. Does anyone have any opinions on these or is there a better reactor altogether out there that I am not...

It is some sort of start fish but I am wondering if it is reef safe.

Tank in April of 2004

What is this guy? I caught him this morning going across the front galss of the tank? Is he good or bad, looks like a snail without a shell.

What type of coral is this?

Which is the better set up, 1 or 2?

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Any problems putting the 2 in the same tank?

I was wondering on the best way to frag my bubble coral as it has gotten to large for the space it is in and is hitting the rock when it fully expands. I was thinking of trying to cut in half using a dremel but am worried about killing it as I have been told that they can be difficult to...

I am running 2 400W 20000K Radiums on an HQI ballast. How often should these be changed? The lights are on about 12 hours a day.