2 year old 55 gallon. Is it worth upgrading to 85?

eltonhodges

New member
Hi all,

I currently have a two year old lightly stocked 55 gallon high tank with a 35 gallon sump. It has one firefish 1.5 inch, a bi-color blennie 2 inch, a green chromis 1 inch and a Banggai Cardinal at 2 inches as well as two cleaner shrimp and a clean up crew of snails and hermits.
Corals include one 2 inch round chalice, a 3 inch round group of zoas, 2 inch round frogspawn, 2 inch toadstool and 1.5 inch round trumpet with 4 heads.
I'd like to add a few more corals (LPS and soft) and one or two larger tangs or foxface.
My question for the more experienced reefkeepers is this: Should I bother going to an 85 gallon interim tank, or just wait a bit and move up to a 110-120 gallon when time allows? If I went to an 85, then I'd move the 55 gallon underneath and use it as a sump. So effective water volume would be around 105 with the 85/55 combo. Would that be enough volume for what I need. Just wondering what many of you who have been doing this a long time would recommend.
I monitor salinity, magnesium, calcium, KH, PH, nitrate and nitrite and phosphates weekly. I dose two part calcium/KH and magnesium as needed. Everything is run through an APEX system.
Lighting is Ok with two Kessil 160's controlled through the APEX. But I would upgrade those to 360's with the larger tank as well as keeping the 160's as support light.
I still have a bit of a hair algae and cyano issue, but it's not out of control and I believe I just need to do more regimented water changes and control feeding a bit more. I use 3 powerheads to keep the tank circulating and suspend detritus off the bottom. The overall tank cycle is 750 gph, so about 13 x the volume of the display tank, which is better than the 10 usually proscribed.

Anyhow, that's my setup, any input from the experienced reefkeepers would be appreciated.

Cheers all,

Elton
 
Thanks Junbug, that's sort of my thinking as well. It's trying to balance what my wife will let me spend and in what time period. I could do the 85 in the next month, but the 120 will take at least a year, since I'll need to account for lights/skimmer upgrades as well.
 
Bigger tank will mean bigger expenses.
But if you already set on having a 120, then there is no reason to go to the 85 gallons for a year and then go up to 120. You can just get the tank now and wait until when you have more money to buy lights and skimmers..
 
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