tank revamp questions

coachwah

Member
Hello everybody. I have been eavesdropping the message boards for about a month now and am totally impressed with the amount of knowledge out there. I have solidified more ideas in the past month than I have in 5 years. Thank you.
I am not sure if I am posting this in the correct forum, as I have been keeping sw for 10+ years, with mixed success however.
I am finally at the point where I can afford to spend a little $ (yeah right) and not nickle and dime my systems together.
I currently have a great 135 acrylic that has an acrylic sump for it's base. It has 2 6' VHO's (1 URI superactinic, 1 URI actinic white) and 4 4' fluorescents (2 blue, 2 50/50). I have a quiet one return pump attached to a 3' Lifeguard UV and mechanical fliter (empty). There are four chambers in the sump in which I keep ~50 gallons of water, rough calculation. The first chamber has bio-balls, the second some base rock from my previous aquarium with a powerhead, the third a berlin skimmer with a rio 2100, and the fourth some base rock, caulerpa, a small flourescent, and a power head (this is also the chamber where the return bulkhead is located).
In the tank I have a porcupine puffer, a yellow tang, blue damsel, maroon clown, banded shrimp, numerous hermits, a dozen or so mushrooms that are spreading, green hairy mushroom, and an unidentified coral (hard coral, shaped like a plate 6" in diameter green with pink anemone looking polyps. ~100 lbs of what was live rock (tonga branch and fiji) and base rock, and ~1-1.5 inch layer of carrib sea fine aragonite. 5 powerheads for circulation and a spray bar return
Most everything in the tank is doing great, even the corals, however the tang has fin erosion (HTLE I think). I feed at least every other day a mixture of shrimp, brine, formula 2 (dry and frozen), krill, roamaine, and nori.
Water parameters are as follows: 75 degrees, Salinty 1.024, Ammonia 0, pH 8.6, alkalinity off the chart (red sea), calcium over 400, and nitrate is always 20 mg/l ppm (Aquarium systems). My alkalinity and calcium rarely ever drop. I have an algae problem (weekly cleaning of glass and vac. substrate). And absolutely no coralline algae.
I have not been able to keep snails alive or live rock the way it should be.
Here is what I am planning to do:
1. Change out the aragonite for a 4" DSB made primarily of play sand topped off with live sand. How would I do that without killing everything off?
2. Change out flourescents and add either 2 96 watt or four 55 watt compacts keeping one flour. for a moon light.
3. Add mud to the first compartment for the caulerpa.
4. Get rid off the bio balls
5. Change out the left side of the rock and add more live rock.
I have been holding off (as hard as it has been) on buying any livestock until I figure this out. I would like to add an Achilles tang, flame angel, and more corals.
I have a 100 gallon on stand-by that is going to be a FOWLR when I get a RO/DI. It has a wet/dry and plenum.
Can I accomplish this without tearing everything down? Am I off base or missing anything?
I know that this is really lengthy, however, I would appreciate any help anyone has to offer.
THANK YOU!!!
 

jjboods

Member
To change from CC to DSB...yes...you'll need to tear everything down...check my process in the post by Keldog titled "What type of substrate do I have". As for the problem with the Tang...not sure what that could be from...if you are getting some algae...I am guessing you are using tap water...have you tested it? Maybe something in it is harming the Tang. Having a refugium...I am surprised that your nitrates are at 20...getting rid of the Bio Balls and the CC may lower that...actually...your tap water could have some as well. I think most reefekeepers here would tell you to NOT use a UV sterilizer as it kills beneficial micro-organisms. And no Coaralline algae...again...probably the tap water.
 

coachwah

Member
Thank you JJBoods.
I thought that my tap water may be part of the problem. I found your reference and your steps are very similar to how I was planning. Thanks again.
 
Coach,
I am new at this, but have been studying books and this board for a little while. It seems to me that the sand that you have in your tank is the same kind that you would use in a deep sand bed. (JJ, CC= crushed coral? Where?) I would guess that you would just need to add more sand, not completely replace it. I would check on possibility raising the temp a little too. Most people suggest 1-2 lbs / gallon of live rock, more rock and no bio-balls seems to be the way most people on this board tend to go.
Go to search forums and do some searches of former threads about sand/ substrate types, recommended temps, live rock amounts. You will get a lot of information pretty quickly that way.
Good Luck,
-Christine
 
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