budget coral tank setup

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sage23
Posts: 9
Joined: Wed Jun 05, 2024 9:10 am

budget coral tank setup

Post by sage23 »

What's the cheapest way to set up a coral tank without skimping on quality? I've got a 20-gallon tank, basic LED lights, and a HOB filter. Wanna keep Zoanthids and maybe a few softies. Any tips?
brysonx
Posts: 6
Joined: Thu Oct 10, 2024 8:51 pm

Re: budget coral tank setup

Post by brysonx »

For a 20-gallon, you can skip the protein skimmer if you're diligent with water changes. Aim for 10% weekly. Use a good salt mix like Instant Ocean, and keep your salinity stable. Softies and Zoanthids are forgiving, but lighting is key. What's your PAR rating?
florabear
Posts: 2
Joined: Thu Oct 10, 2024 6:39 pm

Re: budget coral tank setup

Post by florabear »

I'd second the water changes. Also, ditch the HOB filter and grab a small powerhead for flow. Zoanthids like gentle movement, and it'll help with detritus. You can find cheap ones on Amazon. How often are you testing your water?
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Kazumi4
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Joined: Mon Jan 01, 2024 6:07 am

Re: budget coral tank setup

Post by Kazumi4 »

brysonx wrote: Tue Jul 08, 2025 6:16 pm For a 20-gallon, you can skip the protein skimmer if you're diligent with water changes. Aim for 10% weekly. Use a good salt mix like Instant Ocean, and keep your salinity stable. Softies and Zoanthids are forgiving, but lighting is key. What's your PAR rating?
Agreed on the salt mix. I'd add that you should test alkalinity weekly too. Softies can handle swings, but Zoanthids will close up if it's off. What's your budget for upgrades?
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fluxa
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Joined: Sun Sep 29, 2024 5:33 am

Re: budget coral tank setup

Post by fluxa »

Honestly, you can cut corners on equipment but not on testing. Get a decent alkalinity kit, and maybe a refractometer if you're using a hydrometer. Those things are sketchy. How's your tank cycling?
sage23
Posts: 9
Joined: Wed Jun 05, 2024 9:10 am

Re: budget coral tank setup

Post by sage23 »

Thanks, everyone! I'll grab a powerhead and test kit. My tank's cycled, params are good, 0 ammonia, 0 nitrite, 10 nitrate. Lights are around 50 PAR, which I heard is enough for Zoanthids. Gonna start with a few frags and see how it goes.
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florakai
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Joined: Thu Oct 10, 2024 1:24 am

Re: budget coral tank setup

Post by florakai »

50 PAR is chill for Zoanthids, but you might wanna bump it up if you add anything else. Also, watch your phosphates. Softies can handle a bit, but too much and you'll get algae city. What's your cleanup crew look like?
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boulderk
Posts: 4
Joined: Fri Apr 12, 2024 12:16 am

Re: budget coral tank setup

Post by boulderk »

I've got a similar setup. Just added a few hermits and snails. They help a lot with algae. Cheap and effective.
florium
Posts: 4
Joined: Thu Oct 10, 2024 9:35 pm

Re: budget coral tank setup

Post by florium »

fluxa wrote: Tue Jul 08, 2025 9:27 pm Honestly, you can cut corners on equipment but not on testing. Get a decent alkalinity kit, and maybe a refractometer if you're using a hydrometer. Those things are sketchy. How's your tank cycling?
Refractometers are worth the cash. Hydrometers are too inconsistent. Also, consider dosing two-part if your alkalinity drops fast. What's your calcium level at?
florabear
Posts: 2
Joined: Thu Oct 10, 2024 6:39 pm

Re: budget coral tank setup

Post by florabear »

If you're sticking to softies and Zoanthids, you probably won't need to dose. Just keep up with water changes. But if you branch out to LPS, that's a different story. What's your long-term plan for the tank?
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