Probably not enough light for stony corals, might be marginal for some soft ones too depending on the depth of placement. On your tank is the 30" dimension the depth? If so, you will need lots more light to penetrate to the bottom. You should be able to keep a decent selection though, just watch what you choose to add and where you place them. There are some nice corals that do well in lower light I believe, but I'm certainly no expert on this.
For comparison, my 30" deep tank is lit with 2 x 250w 10000K MH and 2 x 96w actinic PCs. Even so, I still try keep the stonys up high where the light is best.
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I retired and got a fixed income but it's broke.
Ed
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50 gallon FOWLR, 10 gallon sump.
130 gallon reef, 20 gallon sump, 10 gallon refugium.
10 gallon quarantine.
60 gallon winter tank for pond fish.
300 gallon pond with waterfall.
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