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I have a 5 gallon bucket that holds RO/DI water for auto top off on a 20 gallon tank. I evap approx 1/4 gal per day. What can I add to the top off water bucket to add Calcium to my tank. Kalk wouldn't be effective after setting mixed in the top off bucket for up to a week would it. I had...

Thanks for th replies, I know I only need a small amount of rock but still want great shaps and max life. In addition I really don't care for rock that looks like branching coral pieces but rather prefer gnarly, cragly (sp) looking rock so I think Kaileni (Uaniva) fits that look better.

Which rock would you choose for a 20 gal long SPS/clam reef? 1. All Marshall Island Rock from Premium Aquatics? 2. All Uaniva (Kaileni) Rock from SaltyCritter? 3. A mix of Ultra Bali, Eva and Uaniva (Kaileni) Rock from PhishyBusiness?

Thanks, that answers my question. Now the hard part is which 3-5 should I get? I know I should probably start with a Monti Dig or two, then maybe at least one acro after I see success with the easier montis. Maybe a yellow porite.

In general, how many SPS can be placed in a small tank like a 20 gal long that will allow for proper growth resulting in a full looking reef without overcrowding? My aquascaping plan is for a small rock island on each side with maybe a small arching piece between.

Thanks Ben.

I'm asking for future reference. The tank is not set up yet. Will be in the next month. The tank will be a 20 gal long with 15 gal sump SPS/clam dominated tank. The lighting is ReefOptix 250W HQI Pheonix 14K anywhere from 6 to 12 inches above the water depending on heat issues. The flow is...

After the cycle and all parameters are correct, how long before I can attempt some SPS frags (monti and maybe an Acro or two).?

How long after the cycle should I wait before adding some SPS frags?

How many fish can I have in a 20 long?

How do I attach the "Y" fitting? Having a hard time getting the regular nozzle off the ball fitting. Thanks

I will have a 20 long SPS/clam tank. How many shrimp can I stock? I want to get a Blood/Fire shrimp, Skunk cleaner and would like 3 sexy shrimp. Is this too many and would these shrimp tolorate each other? I will also have approx 6-8 hermits and 8-12 snails, a true Perc clown and Citron goby...

With a power outage will I get water back through a Seaswirl?. Should a hole be drilled in elbow closer to the surface?

Torn between keeping it simple with a couple powerheads and HOB skimmer or having a sump with hang-on overflow, return pump to a seaswirl, cheato in the sump/fuge etc. The 20 long is rather small, will be in the living room and would like it to look clean, don't know how it will look with...

For a 20 long SPS/clam dominated reef... How much flow should I have coming through a 15 gal sump (with cheato & skimmer) through a 1/2" seaswirl mounted back center? I will also have a Seio 620 directed from front corner.

Thanks Len, appreciate the response.

Those of you with Seaswirls, would a 1/2" swirl mounted in the center with the "Y" fitting with 180 rotation work on a small tank like a 20 long? Would probably be running at 350-400gph from sump. I also will have a Seio 620 mounted in one corner pointed slightly down and across toward the...

Will silicone adhere to plexiglass dividers in sump?

Which one would yield more light over a standard 20 gal? Would I be able to keep some SPS/lower light clams with either light?

I have been reading about some of the alleged specs of the new 24 nano. First the rumored lighting being 2x36 w yeilds less light per/gal than the new 12 gal deluxe....3W v. 4Watts/gal respectively. Why would they do this knowing the demand of better lighting for reef use. It would make more...