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Furam28's 15 gallon rimless nano tank budget build


nori4dori

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Victoly is correct, SPS keepers don't aim for 0 ppm, but more a range of 0.03-0.05 ppm is what I usually see. For those that saw better color with higher nutrient levels, I would imagine that they were in the ULN range 0-0.03 ppm and their corals lightened up and looked pastel. Upon "increasing" their nutrient levels, they basically allowed it to hover around 0.03-0.05 ppm and got their colors back.

For nitrates, I usually follow the rule of thumb of keeping them below 5ppm. I would caution that just because you have low phosphates, doesn't mean you have low nitrates... as I found out this past Spring during my upgrade. I had 0.05 ppm phosphates and > 50ppm of nitrates in my tank... so it can happen.

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Victoly is correct, SPS keepers don't aim for 0 ppm, but more a range of 0.03-0.05 ppm is what I usually see. For those that saw better color with higher nutrient levels, I would imagine that they were in the ULN range 0-0.03 ppm and their corals lightened up and looked pastel. Upon "increasing" their nutrient levels, they basically allowed it to hover around 0.03-0.05 ppm and got their colors back.

For nitrates, I usually follow the rule of thumb of keeping them below 5ppm. I would caution that just because you have low phosphates, doesn't mean you have low nitrates... as I found out this past Spring during my upgrade. I had 0.05 ppm phosphates and > 50ppm of nitrates in my tank... so it can happen.

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What brought that about again? Biopellets no, GFO yes? It was an unusual circumstance, no?

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Unusual for sure but just wanted to throw caution to the wind so that assumptions aren't made on the fact alone. His phosban is mainly a phosphate removal media and if there is not a form of nitrate removal in his system, the same scenario could play out, however very unlikely.

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I could only find 1 clownfish in my tank today. Maybe he was hiding somewhere, but no. And then I look around the tank and sure enough - he is lying next to the tank, all dried up. Bummer. The only reason I got clownfishes is because they were not jumpers. I have a rimless tank with my water level 1/2" from the rim. I wonder what made him jump? My other clown already looks lonely. Should I get another clown? Or should I get a bottom dwelling goby instead, just to be safe?

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Sometimes they just jump, they're goofy animals. Some fish are more prone than others to do it (wrasses im looking at you), but even a goby could jump. If it were me, id get a goby AND a clownfish :)

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i've read at a few places that some gobies can hurt SPS such as acros. How common is that. I am not going to get a yellow clown goby for sure, but how about a yellow watchman goby? My frags are small, so I want to minimize any potential threat to them until they have fully taken hold.

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I think it was more the clown gobies that get the reputation for nipping at SPS polyps and hanging on colonies all day long preventing the polyps from coming out. You should be fine with a watchman goby or any lower dwelling goby.

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  • 2 weeks later...
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  • 2 weeks later...

Few updates:

FTS 08/27/14:

post-3591-0-67772900-1409201759_thumb.jp

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My tank is pretty new too. I have been trying to keep the coralline completely off the glass and overflow because I like the 'pristine' look. So far I am winning but not sure for how long. Your tank looks great!

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  • 2 weeks later...

Looking good. Your superman split? Lucky. I've had mine in the tank for a while now with no signs of splitting. It has even moved off the tiny piece of LR it was attached to without leaving a baby behind :( If I knew it was a slow grower I would have placed it in a more noticeable part of the tank.

Looks like your light is working for you nicely too.

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Thanks Ky. The light is working well, but doesn't cover the whole tank well: there is too much shaded area on the two sides (left and right). The light fixture is 16" wide and my tank is 30" wide so it doesn't cover well. I thought of raising it higher but that will mean too much wasted light front and back since my tank is only 12" front-to-back. So I have ordered some LEDs and will be doing 2 small DIY fixtures on the two sides.

Believe it or not my superman is splitting again! I should try to frag one of the babies. I have it under high light and I have been feeding it reef chilli every other day. I think that's whats making it grow fast. When you feed it coral food, put a little on it first, and it will start curling up into a cup shape. As soon as it does that, put a good amount of food into the cup and it will fully close up and finish up all the food. That way you don't spill too much.

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Forgot to mention: both my clowns jumped out. This means I have lost 3 clowns and a firefish goby trying to maintain my lidless rimless look. I have decided to go fishless! coral only. that will also make it easier to keep nutrients low. I took my skimmer offline and I have been feeding my nassarius snails pellet food, and broadcast feeding Reef Chilli every other day to maintain some nutrients.

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Oh man that stinks about the clowns. You might could do a neon goby or yellow watchman. Those fish seem to like living on the ground. Fish poo is really good for the corals. Nitrates are nitrates but I think the fish poo kind are better. Maybe they are easier to break down? IDK. A coral tank would be nice too though.

Good luck with the LED lights. I'm sure they will turn out great. Oh and just a thought: if you have your current fixture turned down to say 50% you are already losing potential light going into the tank. If you raise the light and turn it up to 75% in theory you could still get the same amount of PAR to the corals. You would get light bleed onto the floor like you are saying but you wouldn't have to add more lights. Of course that throws off efficiency but with LED's how much does that equate to actual cost? Probably not very much.

The superman I have in my tank is in low light so maybe that is why it is taking forever to split. Great idea with the food. I need to do that with mine. It does curl up into a cup sometimes when I'm feeding the fish. He must be getting some food when he does that. I need to get one of those extendable coral feeders asap!

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  • 2 weeks later...

I feed my nass snails (now that I don't have any fish) pellets every other day, and feed my corals a whole cube of mysis and 3 scoops of reef chilli every other day. But no matter what I do, I can't detect any nitrates in the water. When I first cycled the tank, and for months after that my nitrates would hover between 10 and 20 ppm. I am guessing it was the old live rocks that were leeching. But for the last 2 months my nitrates have been zero (as read on API kit which sucks big time!). I took my skimmer offline for 3 weeks now and that hasn't helped. My phosphates will start creeping up to 0.1 but nitrates will stay 0. So after reading JeeperTy's posts about dosing Spectracide (potassium nitrate), I decided to give it a try. Ordered it from Amazon for $6 (http://www.amazon.com/Spectracide-66420-Remover-1-Pound-Granules/dp/B004GVYXKC) on prime; dissolved 5 grams in 50 mL of DI water, and then added 5 mL of that to my tank. Based on my calculations (25 gallon water volume), 500mg of spectracide should give me 5ppm, and that's exactly what I got when I measured an hour after dosing. That was yesterday. Today I will test again to see where my nitrates are at, and dose accordingly. I am hoping this will bring some color and good growth, but I am also a little worried about algae. So far they have been under control.

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looking good furam, the tank has developed into a living portrait of the sea.

+1 on dosing, im really interested to see how this goes.

my advice would be make sure you test frequently with the smaller tank size, and always have some fresh sw on hand for a quick change if something is up.

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thanks bluemoon. i try to test all the imp parameters atleast once a week. with a nano you pretty much have to. and yeah. nothing beats a quick water change. there have been times when i am scratching my head why all of a sudden one of my zoas decided to close up for no good reason. i do a 5g water change and he's happy again!

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Im having that same "issue" with nitrates in my nano. Ive been overfeeding my corals like no tomorrow as well as the fish. Still zero. Im going to give it a few more days with my homemade coral food (aka a ton of stuff in a blender) and see where im at on Sunday. If no rise.. I might have to go thr same route as you and Ty

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